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...that while attempting to develop a super strong glue, 3M employee Spencer Silver accidentally developed a glue that was so weak it would barely hold two pieces of paper together? However, his colleague Art Fry needed the glue. Fry sang with his church choir and marked the pages of his hymnal with small scraps of paper that often fell out. He used Silver's glue to hold the papers in place. Today we call this invention Post-it Notes.

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Class 402/13 - Flaccid retainer secured by knotted, intertwined or wedge portion


Subclass of Class 402 - Binder device releasably engaging aperture or notch of sheet
Definition: Device where the sheet retainer is in the form of a limp
No. of patents: 40
Last issue date: 11/11/2008


NumberTitleIssue Date
7448818File folder
Of the type of those which incorporate a portfolio (1), with its front wall (2), its rear wall (3) and its spine (4), to which is coupled a plurality of sheets or documents (9) provided with holes (10) next to one of their e...
11/11/2008
7320554Tuckable cover for a document storage device
A document storage device configured to receive a title sheet. The document storage device including a cover having a cover lip and a cover sheet coupled to the cover. The cover sheet is movable between an open position and a closed position such that when the cover...
01/22/2008
7299519Combination toilet plunger and brush
A tool for both plunging and cleaning plumbing fixtures and drains includes a handle and a plunger and a cleaning brush both coupled to the same end of the handle. The plunger is moveable between an extended position in which it covers a majority of the brush, and a...
11/27/2007
7234886Fastening arrangement for detachably interconnecting punched documents
The present invention provides improvements in paper fastening to enable a user to remove a desired portion of papers from a fastened stack of papers without having to unnecessarily detach unwanted papers in the stack from the prongs of the fastener. The improved pa...
06/26/2007
7077595Spine binder
The present invention provides an unitary spine binder which comprises an elongated dorsal hinge bearing pairs of opposing and complementary male and female ring elements having known male fastener and female fastener, respectively. Each pair of ring elements also c...
07/18/2006
7021852Article holder
An open ring-like device for holding articles such as plastic cards and keys is formed so that its ends are opposed to one another and includes tips at the ends. The distance between the tips is less than the thickness of an article. Articles can be inserted into th...
04/04/2006
7018125Notebook having integral binder members
A notebook device includes an intermediate connection member integrally coupled between a top and a bottom cover sheet members with folding lines. The intermediate connection member includes one or more bars and one or more straps coupled between the top and the bot...
03/28/2006
6955493Flexibind books
A system for binding books includes a flexible binding material in the form of a stud having top and bottom caps. The stud is inserted into signature staples that protrude from the body of the signature to form stud holes. The binding material can be any material th...
10/18/2005
6837521Foam book with improved binding and method
A book with improved binding includes a front cover page having at least one binding hole extending therethrough, a rear cover page having at least one binding hole extending therethrough and at least one center page having at least one binding hole extending theret...
01/04/2005
6796738Loop-type binder for documents
A loop-type binder comprises tongues (4) attached on its back cover for holding document sheets, and these tongues (4) constantly increase in thickness from their base (6) to their tip (9), thus comprising a deflection resistant tip and a...
09/28/2004
6196748Folder binder
What is provided is a folio having at least one set of interleaved attachment tabs hingedly formed at the folio spine, comprising a first tab and a second nested tab, where both tabs share the same spine axis, and where each tab provides a means for attac...
03/06/2001
6168337Flattenable loop binder
The pliable, readily flattenable loop binder for retaining loose-leaf sheets has a mounting strip with an elongated spine, an adhesive on the back of the spine, and a removable liner over the adhesive. Paired transversely aligned loop-forming elements pro...
01/02/2001
6113298Paper ring
A paper ring (10) comprising a generally double toroidal shaped flexible loop (12) having abutting ends (14), (16) which can be moved apart to fit within aligned punched holes (18) in a stack of loose-leaf pages (20), so as to temporarily hold the loose-l...
09/05/2000
5827003Ring binder with alignment blade tongues
A ring binder having an upper and a lower cover blank joined by a flexible rear blank. The binder has at least two aligning tongues extending from the lower cover blank to the upper cover blank for retaining perforated paper. Each aligning tongue is forme...
10/27/1998
5626432Adjustable locking binder
An improved sheet binding device for fastening together a plurality of sheets having prepunched, spaced apart openings, comprises a plurality of locking members for each pre-punched hole, either with an individual restraining element or connected with a b...
05/06/1997
5593242Filing of sheets of paper
A filing strip is of a bendable material. The filing strip has a central elongate anchor strip and a prong extending from each end of the strip. Each prong has a tip portion and an intermediate portion. Each tip portion is narrower than its adjacent inter...
01/14/1997
5423624Hinged loose-leaf retainer system
A system for retaining stacks of loose-leaf papers in a file folder providing random access to any one sheet is disclosed. The system includes flexible retainer strips sized to fit through perforated holes in the paper and whose ends are configured to rel...
06/13/1995
5333962Foldable ring binder-folder
A hybrid binder-folder utilizing a foldable ring system for holding pages, which affords the advantage of easy page manipulation of ring binders with the advantage of flat folding of folders. The binder-folder has two side members which are mutually folda...
08/02/1994
5213429Foldable ring binder-folder
A hybrid binder-folder utilizing a foldable ring system for holding pages, which affords the advantage of easy page manipulation of ring binders with the advantage of flat folding of folders. The binder-folder has two side members which are mutually folda...
05/25/1993
5167463Ring binder
A ring binder (1) comprises a sheet of polypropylene material divided by score line (2, 3) into front and rear panels (4, 6) joined by a spine (5). The binder includes a pair of binder strips (7), each of which has a partly circular head (8). The strips (...
12/01/1992
5037228Single piece file clasp
A single piece file clasp, molded from a resin material, includes a main body portion and two prong portions extending from opposite ends of the main body portion. A series of equally spaced holes are molded in one of the prong portions and at least one p...
08/06/1991
4940352Binding folder
A binding folder is provided which includes a foldable plastic cover having a bottom part for anchoring fastening strips which extend through perforations in paper sheets to be held. The top part of the cover forms a counterholder with two pairs of slots ...
07/10/1990
4869613Combined sheet compressor and transfer device for attachment to spaced prongs of a file folder fastener
A combined sheet compressor and transfer device for attachment to spaced prongs of a file folder fastener including a plate-like cross member for receiving the prongs of the file folder fastener and bearing against a stack of sheets to thereby act as a co...
09/26/1989
4856926Sheet binder
In a sheet binder (1), which consists of a rear cover (2) and a front cover (3) connected with each other by means of a folded spline strip (4), in the area between the rear cover (2) and the front cover (3), a strap (10) is provided in the area of the fo...
08/15/1989
4784507Filing device for layers of sheets
A filing device produced as a continuous one-piece body from a sheet or foil by a punching - stamping process has sequencing tongues supported as bending-elastic compression members moving easily with the folding movements of the file covers in insert str...
11/15/1988
4750884Binder backing for notebooks
A stability unit used in combination with a three ring binder of the type having front and back covers hingedly mounted between a spine. A binder assembly including arcuate rings halves is mounted to either the spine or cover. The stability unit is mounte...
06/14/1988
4714366Loose-leaf document binder
Individual fasteners are provided for each of several pre-determined holes along a margin of pages of a document for securing the pages together at the holes, each fastener including: a relatively rigid cylindrical insert having a head at one end, the dia...
12/22/1987
4681473Loose-leaf binder for stacks of sheets
The invention refers to a loose-leaf binder for a stack of paper sheets, comprising a cord or twine adapted to be passed through a perforation in a stack of sheets and comprising a clamping means for the cord or twine formed by a plate member having a fir...
07/21/1987
4544298Holding element for sheets of paper and similar materials
The invention is a holder for cheques and similar items, the holder being of unitary plastic construction with a pair of prong-like members being cut from a backing. The prong-like members of the holder in one form of the invention each have a stem portio...
10/01/1985
4519504Wicket bag packet
A wicket bag packet for use in conjunction with automatic and semi-automatic packaging apparatus comprises a stack of flattened flexible packaging bags, each of the bags having an open end and having wicket holes adjacent to the open end, and a wicket inc...
05/28/1985
4437781Ring binder
A ring binder comprising a pair of covers connected by a flexible back portion consisting of a flexible back strip which separates the inner edges of the cover and strip portions which overlap portions of the covers near the inner edges. The overlapping p...
03/20/1984
4405250Adjustable looseleaf binder
An adjustable looseleaf binder is provided for the accumulation of sheets of hole punched paper and the like. This binder has an elongated base plate to which are attached one end of a plurality of flexible binding posts. The second ends of the binding po...
09/20/1983
4403882Hanger-binder
A novel hanger binder for binding and storing perforated edge paper in conventional suspension filing systems. The hanger binders which are used in pairs have two side members with hooks to engage conventional suspension filing apparatus. Perforated edge ...
09/13/1983
4300848Binder for paper sheets with pre-formed holes
A device is provided for binding together sheets of paper formed with two or more spaced holes and attaching the same to a folder or the like. The binder preferably is injection molded of a semi-flexible material and is formed with a flat backing plate an...
11/17/1981
4261664One-piece report binder
A one-piece binder blank is die cut from plastic sheet stock and formed with integral straps and strap keepers to fasten loose leaves in the binder. The blank is scored to form one or more fold lines defining a spine between front and back covers. At spac...
04/14/1981
4256411File folder with integral loose leaf binder rings
Loose leaf folder having back and front cover panels and ring binder forming strips integral therewith for releasably fastening loose leaf sheets within the folder. The binder forming strips are struck from the back cover panel and include barbed tips. Re...
03/17/1981
4202642Loose-leaf binder utilizing stiff covers
The disclosed apparatus is capable of uniting a cover with a sheaf of pages having through holes at purely optional locations. A flexible stem binds the pages and has its ends engaged by separate runners positioned adjacent the sheaf. The cover is connect...
05/13/1980
4174909Loose leaf binder
A binder is provided manufactured in a single step operation from a single sheet of material and comprises front and back covers, a backing intermediate the two, and fastening means manufactured in one of the back covers and slot arrangements disposed adj...
11/20/1979
4149738Tamper-proof page assembly
A tamper-proof page assembly utilizes a ribbon to string the assembly together by passing the ribbon through holes in the pages of the assembly. The ends of the ribbon are sealed to a cover page thereof with a thermosetting plastic slug. Removal of the sl...
04/17/1979
 
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