US3494262A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Piston
Assignee: Northrop Grumman Space and Mission Systems Corp
•
Filing: 1967-08-09
•
Granted: 1970-02-10
•
Expires: 1987-08-09
Abstract
No abstract record available.
Inventors
- 👤 Wallace Philip Holcombe
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 15:30
CPC Classifications
F; F16; F16J; F16J1/00; F16J1/08; F01; F01M; F01M1/00; F01M1/08; F01M2001/086
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1020638A
Cited
US1021577A
Cited
GB140552A
Cited
US1430928A
Cited
FR627856A
Cited
US1787119A
Cited
US1916978A
Cited
US2244166A
Cited
US2511458A
Cited
US2702219A
Cited
FR1038532A
Cited
US3179021A
Cited
US3272092A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1973-02-09 | 1973-08-11 | 1974-02-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1977-02-09 | 1977-08-11 | 1978-02-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1981-02-09 | 1981-08-11 | 1982-02-10 | $7700.00 | Window Closed / Lapsed |