...Chester Carlson was a patent agent who tired of having to make multiple copies of patent applications using the only duplication method available at the time: carbon paper. In 1959 he came up with a new copying system and took it to IBM for evaluation. The "experts" at IBM determined potential sales to be only 5,000 units because people wouldn't want to use a bulky machine when they had carbon paper. Carlson's invention was the xerography process, the company founded on the system is Xerox.
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| Number | Title | Issue Date |
| 7066494 | Magnetic page marker The present invention consists of a magnetic page marker comprised by a pair of laminar walls which form a clip applicable to the edge of the page that is intended to mark. Into the clip, there is a pair of magnetic means which clasp said page, whose admission into ... | 06/27/2006 |
| 7040665 | Carrier sheet with integrated detachable die-cut card having a magnet material backing A carrier sheet comprising a printed paper sheet having an integrated detachable card with a magnetic backing and method of manufacturing same is described. The carrier sheet is comprised of a printed paper sheet having printed matter on at least a front face thereo... | 05/09/2006 |
| 6793251 | Binder with magnetically retained pages A binder has a front cover and a back cover. A first page assembly for mounting in the binder includes a first magnet. A second page assembly for mounting in the binder in an overlying relationship with the first page assembly includes a second magnet for releasably... | 09/21/2004 |
| 6644697 | Integrated shopping list and coupon folder The invention is an integrated shopping list and coupon folder, formed from a single shopping list sheet. Major food and non-food category listings are provided on the shopping list sheet, as well as blank lines for listing individual items, sizes, brands... | 11/11/2003 |
| 6550812 | Magnetic write/erase binder A binder, such as a three ring binder, is provided with a magnetizable panel on the front cover of the binder and with a stylus and a permanent magnet erasing device mounted onto the binder. The magnetizable panel may be inset into the cover of the binder... | 04/22/2003 |
| 6273660 | Flexible magnetic inserts for binding into magazines or periodicals A flexible magnetic insert for a magazine or a periodical is provided which may be bound directly into the magazine or periodical and which provides a plurality of individual magnetized advertisements or coupons that can be removed and placed upon a metal... | 08/14/2001 |
| 6203230 | Protective notebook A notebook includes a first cover comprised of a first metallic material and having a plurality of first edges. A second cover is comprised of a second metallic material, with the second cover having a plurality of second edges and interfacing the first c... | 03/20/2001 |
| 5842721 | Paper sheet holder A paper sheet holder is provided and includes a base plate (1), a paper sheet guiding plate (3) made of non-magnetic material, which is arcuate as viewed in a top plan (upper direction), a permanent magnet (4) fixed at a convex side surface of the paper s... | 12/01/1998 |
| 5709409 | Magnetic spiral bound book This disclosure is directed to a spiral bound book having a permanent magnet incorporated in one of the covers and a complementary weight or magnet incorporated in the opposite cover. The arrangement is such that the spiral bound book is rendered readily ... | 01/20/1998 |
| 5702126 | Magnetic book and method of forming same This disclosure is directed to a miniature book construction in which one of the book covers includes a permanent magnet whereby the book can be readily affixed to a magnetically attractive surface. The book construction includes a cover jacket formed of ... | 12/30/1997 |
| 5209593 | Device for storing documents A file, formed by a rear panel, a spine part and a front panel, interconnected by means of flexible strips (live hinges), a file mechanism being disposed on the rear panel, near the spine part. According to the invention the rear panel, the spine and the ... | 05/11/1993 |
| 4620725 | Forms such as a notebook and the like A forms set comprising a pair of covers and a set of blanks held therebetween. One or both of the covers have magnetic material therein which is magnetized so that the covers are held closed by the magnetic attraction therebetween. Also, one or both of th... | 11/04/1986 |
| 4588209 | Powerful magnetic folio A magnetic folio or notebook, capable of handling up to 40 or more sheets of paper, includes two notebook covers which are hingedly secured together, with a thin strip of permanent magnet material secured to one of the covers near the binding of the noteb... | 05/13/1986 |
| 4573821 | Window index system for ring binders A ring binder-based filing system including enhanced prime storage areas for storing content or information records such as an index, table of contents, glossary, or the like. The two prime storage areas in a ring binder, the Home location inside the fron... | 03/04/1986 |
| 4564414 | Magnetic devices, apparatus for use in connection with dry transfer sheets incorporating such devices and sheets for use therein Magnetic devices are described which include a sheet of magnetic material having a relieved groove/ridge configuration, all the grooves and ridges being straight and parallel, and evenly spaced apart. Such devices can form part of apparatus for use in con... | 01/14/1986 |
| 4511161 | Identification and control apparatus, for example, for service personnel for a restaurant A method and apparatus for dividing the working space of a restaurant into selected stations and for assigning service personnel to these stations comprising identification elements each associated with a respective subject and adapted for being magnetica... | 04/16/1985 |
| 4466639 | Loose leaf holder A holder for loose leaf sheets of material, such as paper, having a base for the support of the sheets, a magnetic body located at an edge of the top side of the base, and a means for securing the... | 08/21/1984 |
| 4255837 | Magnetic clip device A magnetic clipping device especially suitable for magnetically retaining on ferromagnetic walls sheet-like articles which may also be stitched or bound together, consists of two permanent magnet face-like elements between which the article is retained wh... | 03/17/1981 |
| 4232452 | Apparatus for use in connection with dry transfer lettering and analogous sheets A drawing board device is described of particular value in composing signs using dry transfer lettering sheets. The board has a base and a horizontal rule mounted thereon and capable of moving vertically and horizontally. The rule has one or more magnetic... | 11/11/1980 |
| 4136981 | Loose leaf binder with flexible telescopic post assemblies and magnetically retained bar A loose leaf binder having a supporting base or lower cover member and a top cover member interconnected by post assemblies receiving a plurality of paper sheets together with a bar mounted on the post assemblies for longitudinal movement thereon with the... | 01/30/1979 |