Patent US5349546A successfully refreshed from Google Patents.
Patent US3536674A successfully refreshed from Google Patents.
US3536674A
Expired / Lapsed
US
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Arylene sulfimide polymers
Assignee: United States Department of the Air Force
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Filing: 1967-09-15
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Granted: 1970-10-27
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Expires: 1987-09-15
Abstract
No abstract record available.
Inventors
- 👤 Gaetano F D Alelio
- 👤 William E Gibbs
- 👤 Richard L Van Deusen
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 17:53
CPC Classifications
C; C08; C08G; C08G75/00; C08G75/30; C08G73/00; C08G73/06; C08G73/10; C08G73/1003
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2621168A
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US3184436A
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US3142662A
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US3110701A
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US3296204A
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US3453244A
Cited
US3440196A
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 |