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US2639852A
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Assignee: Goodrich Corp
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Filing: 1946-09-07
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Granted: 1953-05-26
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Expires: 1966-09-07
Abstract
No abstract record available.
Inventors
- 👤 Charles E Sanders
- 👤 John C Mackinnon
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 15:31
CPC Classifications
B; B64; B64D; B64D25/00; B64D25/02; B64D25/06
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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US2475588A
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1956-05-25 | 1956-11-24 | 1957-05-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1960-05-25 | 1960-11-24 | 1961-05-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1964-05-25 | 1964-11-24 | 1965-05-26 | $7700.00 | Window Closed / Lapsed |