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 |
| 5206382 | Indole derivatives, pharmaceutical compositions and methods of treating neurological and psychiatric disorders A compound having the formula: ##STR1## wherein R1 and R2 independently is selected from the group consisting of H, C3 -C12 straight or branched alkyl, aryl or lower alkyl-substituted aryl; or R1... | 04/27/1993 |
