Organosilicon compounds
Abstract
Abstract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
Inventors
- 👤 Edwin Ian Gilbert Brown
- 👤 James Jack
- 👤 Edward Jervis Vickers
Bibliographic Details
Claims Analysis
Total Claims: 0References Cited (Backward Citations)
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
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| 3.5 Years (Year 4) | 1974-07-26 | 1975-01-25 | 1975-07-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-07-26 | 1979-01-25 | 1979-07-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-07-26 | 1983-01-25 | 1983-07-27 | $7700.00 | Window Closed / Lapsed |