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US2646294A
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Disconnect coupling
Assignee: North American Aviation Corp
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Filing: 1949-12-27
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Granted: 1953-07-21
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Expires: 1969-12-27
Abstract
No abstract record available.
Inventors
- 👤 Gordon H Anderson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 06:20
CPC Classifications
F; F16; F16L; F16L27/00; F16L27/08; F16L27/0849; F16L27/0857
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1319457A
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US1632042A
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US870200A
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US1926422A
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FR764802A
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US2318428A
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US2511495A
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US2432592A
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US2422597A
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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) | 1956-07-20 | 1957-01-19 | 1957-07-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1960-07-20 | 1961-01-19 | 1961-07-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1964-07-20 | 1965-01-19 | 1965-07-21 | $7700.00 | Window Closed / Lapsed |