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Patent US3536681A successfully refreshed from Google Patents.
US3536681A
Expired / Lapsed
US
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Substituted norbornene compounds
Assignee: Goodrich Corp
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Filing: 1967-12-13
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Granted: 1970-10-27
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Expires: 1987-12-13
Abstract
No abstract record available.
Inventors
- 👤 Roger E Morris
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 07:17
CPC Classifications
C; C08; C08F; C08F220/00; C08F220/02; C08F220/10; C08F220/12; C08F18/00; C08F18/02; C08F18/12
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2838479A
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US3022277A
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US2985611A
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US3255162A
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US3058965A
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US3215659A
Cited
US3312675A
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US3336275A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1973-10-26 | 1974-04-27 | 1974-10-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1977-10-26 | 1978-04-27 | 1978-10-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1981-10-26 | 1982-04-27 | 1982-10-27 | $7700.00 | Window Closed / Lapsed |