Did You Know...
...that Charles Goodyear performed some of his experiments on rubber while in debtor's prison? He was there so often he referred to it as his "hotel". Chronically in debt because of poor business sense and ill health, Goodyear depended on the generosity of friends and family. Even after he unlocked the secret to vulcanizing rubber, he was unable to improve his financial situation. When he died, his estate was $200,000 in debt.
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| Number | Title | Issue Date |
| 5707377 | Ligation clip remover A ligation clip remover removes closed ligation clips from a ligated vessel. The remover includes a handle assembly having a squeezable trigger and a slender barrel assembly connected to the handle assembly. A clip separating mechanism is connected to a d... | 01/13/1998 |
| 4553557 | Hairpin opener An apparatus for opening hairpins, adapted to be worn as a finger ring, comprising: an arched shell having a downwardly directed and rounded peripheral edge; a centrally disposed pedestal for supporting the shell in a raised position on a finger engaging ... | 11/19/1985 |
