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 |
| 4136805 | Wrist band holder for electronic calculator A clamping device adapted to be secured on the wrist of a person and conformed to retain portable calculators of various sizes thereat. In a first embodiment the clamping device comprises an angulated base plate including wrist band receiving slots along ... | 01/30/1979 |
| 4135668 | Soaker hose support A support assembly for a flat soaker hose comprising a spike insertable into the ground, said spike including mounting provisions at the top end thereof for receiving a clamp assembly at various angular dispositions. The clamp assembly is conformed to pro... | 01/23/1979 |
| 4088081 | Card tray A universally attachable tray assembly adapted to be secured to table edges of various configurations including on the surface thereof a set of instructions regarding a particular card game, chip recesses for storing betting chips and a drink recess. The ... | 05/09/1978 |
| 4081906 | Cast cutter A hand held electrically driven cutter assembly for removing casts from the body of a patient includes a vertically articulatable bottom plate insertable between the cast and the body surface which on the interior of the cutter assembly forms a switch in ... | 04/04/1978 |
| 4043036 | Power driven shaver A power driven shaver of the type that includes a housing that has a prime mover therein, with one end of the housing supporting a transverse thin curved shield. The shield has a number of longitudinally and circumferentially spaced slots therein that are... | 08/23/1977 |
| 3979846 | Poster supporting device A device for use in maintaining that portion of a poster between upper and lower edge portions thereof in a flat configuration. First and second rigid frame piece assemblies removably engage upper and lower horizontal edge portions of the poster and are d... | 09/14/1976 |
| 3971560 | Fluorescent table tennis assembly A table tennis assembly including a table having a flat upper surface, a transversely disposed net that divides the surface into two playing areas, a ball, and a pair of paddles that include ball striking surface that is characterized by at least the peri... | 07/27/1976 |
| 3935666 | Fulcrum toy assembly A fulcrum toy assembly whereby a primary body element is provided with pointed contact points so as to prevent excursion thereof upon its support base, a second body element which has its center of gravity disposed below the pointed contact points of the ... | 02/03/1976 |
