...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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| Number | Title | Issue Date |
| 7228797 | Cordless blind A cordless blind includes a headrail, a bottom rail suspended from the headrail by a first cord and a second cord, a wall covering disposed between the headrail and the bottom rail, and a drive actuator. The drive actuator includes a spring motor, a spool coupled to... | 06/12/2007 |
| 7201205 | Interior window with integrated blind The interior window with integrated blind is a window adapted for use in a hospital setting to provide a patient with privacy in his or her hospital room while at the same time allowing a doctor or nurse to easily view the patient. The window includes: a substantial... | 04/10/2007 |
| 7082982 | Retrofit doorlight blind assembly A retrofit blind assembly for a doorlight. The assembly includes a frame, a transparent panel, and a blind snap-fitted to the frame. The blind actuator includes gears and a toothed belt for positive, non-slip actuation. A pair of blind guides are mounted on the oppo... | 08/01/2006 |
| 7055592 | Toroidal choke inductor for wireless communication and control An induction choke in a petroleum well where a voltage potential is developed across the choke to power and communicate with devices and sensors in the well. Preferably, the induction choke is a ferromagnetic material and acts as an impedance to a time-varying curre... | 06/06/2006 |
| 7025107 | One-way tensioning mechanism for cordless blind A cordless blind comprising a headrail, a bottom rail suspended from the headrail by a first cord and a second cord. A window covering disposed between the headrail and the bottom rail, a drive actuator including a spring motor and a spool for accumulating the cords... | 04/11/2006 |
| 6953074 | Antibandit shutter An antibandit shutter includes a closed frame made up of a lower housing, an upper head and two side mullions defining a space which can be opened or closed. The opening or closing is effected by a plurality of elongate slats adapted to move from a retracted positio... | 10/11/2005 |
| 6443208 | Window securing apparatus In combination, a window frame and a series of bars carried by the frame for bodily movement toward and away from a side of the frame, said bars having ends, and locking members to lock opposite ends of the bars in window protecting positions thereof, and... | 09/03/2002 |
| 6367937 | Sun protection installation comprising sun protection lamellae having a toothed upper side The invention relates to sun protection installations comprising reflective sun protection lamellae consisting of portions having a toothed upper side disposed at least towards sun radiation influx wherein the individual teeth are formed of at least two t... | 04/09/2002 |
| 5664615 | Sun-blind for car window A sun-blind for a car window is disclosed. The sun-blind has laths separated at a regular interval by flexible strings and supporting nets to be stacked into a container box when not in use, and a hook at the upper supporting bar to hook the laths onto th... | 09/09/1997 |
| 5584331 | Shutter A shutter including a casing, two chain transmission mechanisms bilaterally and vertically mounted inside said casing, two linkages suspended from the top rail of the casing on the inside, a set of louvers pivotably connected between the linkages, a power... | 12/17/1996 |
| 5390454 | Interior window assembly An interior insulative window is provided which is mounted outside of the prime window opening to the window opening frame and/or adjacent wall surface. This interior window is internally formed with decorative trim off-site and installed as a single unit... | 02/21/1995 |
| 5316065 | Burglar and storm-resistant cover for windows and doors A burglar and storm-resistant cover for windows or doors and the like comprising a frame including an upper frame member and a pair of vertical U-shaped channels connected to the ends of the upper frame member and spaced to receive for vertical movement r... | 05/31/1994 |
| 5199230 | Venetian blind storage assembly A venetian blind storage assembly for use in storing a venetian blind in a collapsible tent trailer is provided. The assembly includes a venetian blind mounted within a flexible pouch. The assembly is mounted to an interior of the collapsible tent trailer... | 04/06/1993 |
| 5178200 | Venetian-or pleated blinds, particularly for multiple pane insulating glass window Venetian blinds, pleated blinds or the like, suspended in a cord drive system mounted in a housing, adapted to be positioned between the glass panes in a double glass window, particularly an insulating glass unit. The cord drive system is connected with a... | 01/12/1993 |
| 5076337 | Mail arrival alert for mailbox A simplified attachment for a mailbox which alerts the mailbox addressee that mail has been delivered. The attachment includes a signal flag mounted on a spring activated spool rotatably secured within a housing affixed to the side of the mailbox. When th... | 12/31/1991 |
| 4932710 | Shade screen for the windows of motor vehicles A window shade screen is disclosed in combination with the window of a motor vehicle. The screen includes horizontal slats and a tilt plate positioned thereabove. An assembly for associating the tilt plate with the slats is provided, so that tilting of th... | 06/12/1990 |