US3509232A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Modified thermoplastic polyurethane
Assignee: Goodrich Corp
•
Filing: 1966-08-24
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Granted: 1970-04-28
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Expires: 1986-08-24
Abstract
No abstract record available.
Inventors
- 👤 Charles S Schollenberger
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 13:51
CPC Classifications
E; E04; E04B; E04B2/00; E04B2/74; E04B2/7407; E04B2/7409; C; C08; C08G; C08G18/00; C08G18/06; C08G18/08; C08G18/10; C08L; C08L75/00; C08L75/04
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2801990A
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US2814605A
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US2814606A
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US2852483A
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US3012987A
Cited
US2953539A
Cited
US3240842A
Cited
US3284539A
Cited
US3271352A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1973-04-27 | 1973-10-27 | 1974-04-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1977-04-27 | 1977-10-27 | 1978-04-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1981-04-27 | 1981-10-27 | 1982-04-28 | $7700.00 | Window Closed / Lapsed |