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 |
| 6120634 | Method and apparatus for forming agricultural drip tape A process for forming irrigation drip tape includes, broadly, the steps of a) supplying a longitudinally continuous strip of flexible plastic material in a first direction; b) heating a narrow band of the strip along a longitudinal axis thereof; c) deposi... | 09/19/2000 |
| 5688072 | Agricultural drip tape Drip tape for below or above ground irrigation includes a sheet of material formed into a tube by overlapping opposite side edges of the sheet and bonding the side edges along a longitudinal seam thereby forming a primary flow path. A strip of transparent... | 11/18/1997 |
