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 |
| 4052980 | Triaxial fiberoptic soft tissue retractor A surgical retractor instrument having a first pair of fingers of small diameter fixed to one end of a handle and extending therefrom in essentially parallel relation in a lateral direction, the fingers being joined at their extremities to form an open lo... | 10/11/1977 |
