US2854274A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Pressure reservoir cap
Assignee: North American Aviation Corp
•
Filing: 1955-08-30
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Granted: 1958-09-30
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Expires: 1975-08-30
Abstract
No abstract record available.
Inventors
- 👤 Jule L Gordon
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-22 22:24
CPC Classifications
F; F01; F01P; F01P11/00; F01P11/02; F01P11/0204; F01P11/0209; F01P11/0214; Y; Y10; Y10T; Y10T292/00; Y10T292/14
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1754639A
Cited
CH246640A
Cited
US2531021A
Cited
US2536702A
Cited
CH276995A
Cited
US2684779A
Cited
US2744770A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1961-09-29 | 1962-03-31 | 1962-09-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-09-29 | 1966-03-31 | 1966-09-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-09-29 | 1970-03-31 | 1970-09-30 | $7700.00 | Window Closed / Lapsed |