Patent US2894331A successfully refreshed from Google Patents.
US2894331A
Expired / Lapsed
US
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Pneumatic grip gauge
Assignee: North American Aviation Corp
•
Filing: 1955-08-30
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Granted: 1959-07-14
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Expires: 1975-08-30
Abstract
No abstract record available.
Inventors
- 👤 William C Stratman
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 11:28
CPC Classifications
G; G01; G01B; G01B3/00; G01B3/002; G01B3/008; G01B5/00; G01B5/02; G01B5/06
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US455644A
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US620337A
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US2563440A
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US1110879A
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US1985576A
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US2501130A
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US2560194A
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US2627664A
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US2630632A
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US2622331A
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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) | 1962-07-13 | 1963-01-12 | 1963-07-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-07-13 | 1967-01-12 | 1967-07-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-07-13 | 1971-01-12 | 1971-07-14 | $7700.00 | Window Closed / Lapsed |