Famous Patents
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 |
| 5417091 | Reverse pattern turn cuff sock and method of forming same A casual/dress sport sock having a leg-covering portion and a foot-covering portion wherein the knitting stitch pattern of the sock is reversed in the medial area of the leg-covering portion. Thus, the casual/dress sport sock in its extended position comp... | 05/23/1995 |
