3M employee and church chorister Art Fry needed something to temporarily mark pages in his hymnal. He was in luck because his colleague, Spencer Silver, accidentally developed a glue that was too weak for other purposes. After initially discouraging consumer response, Post-it Notes became a hit in 1979.
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| Number | Title | Issue Date |
| 6820753 | Universal disposable glove dispenser bracket A disposable glove dispenser bracket includes a back panel with a magnetic pad attached thereto for supporting the dispenser and lateral side panels with flanges to grip and hold a glove dispenser box. A biasing spring maintains the glove dispenser box appropriately... | 11/23/2004 |
| 6182842 | Bin filling chute A bin filling chute is useful for filling the compartments of a parts storage bin and also for filling stackable singular compartments, as well as compartments having a lip of some sort. The filling chute has a floor with upstanding side walls. A brace pr... | 02/06/2001 |
| 5882094 | Recessed storage cabinet A recessed storage cabinet includes a face, a back, a top, a bottom, and opposite sides. A plurality of vertically elongated compartments are defined by a plurality of partitions extending between the top and bottom, and between the face and back. An in-f... | 03/16/1999 |
| 5860714 | Vandal-proof vending machine A vandal-proof vending machine includes a rigid frame housed within an opening of a building with a cabinet of the dispensing machine being housed entirely within the building and thereby being rendered inaccessible from the exterior. A front opening of t... | 01/19/1999 |
| 5549372 | Skill crane cabinet A skill crane cabinet having an extruded aluminum frame assembly formed with channels selectively receiving panels forming the side, back and front walls of the cabinet. The panels have various decorative appearances to blend in and compliment the decor o... | 08/27/1996 |
| 5072997 | Dispenser Dispensers for dispensing condiment packages and other articles. Such dispensers feature a front surface that contains a vertical succession of openings. Each opening dispenses a particular type of article, and is fed with articles that are supported by a... | 12/17/1991 |
| 4909578 | Display case A display case for storing and displaying a plurality of items of overall general elongated rolled and cylindrical configuration has a housing for accommodating a plurality of the items with their axes parallel to each other. The housing has a front, a ba... | 03/20/1990 |
| 4903866 | Gravity dispensing bin system A gravity dispensing bin system includes one or more gravity dispensing bins in which bulk product supplied through an open top of the bin moves under gravity to a lower dispensing opening as product is dispensed, and a frame on which the dispensing bins ... | 02/27/1990 |
| 4530549 | Display system A display case with shelves for supporting transparent display and dispensing bins, and the display case defines unclosed windows in the front thereof. The bins are supported on the shelves with the front walls thereof forming a closure for the open windo... | 07/23/1985 |
| 4318577 | Bulk food display bin A self-cleaning bulk food display bin is disclosed which is adapted to be mounted in an opening in a wall. The bin includes a tray with a downwardly and forwardly inclined floor having a debris removal opening located adjacent to a front peripheral wall. ... | 03/09/1982 |