US2653780A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Aircraft fuel storage system
Assignee: Glenn L Martin Co
•
Filing: 1949-02-16
•
Granted: 1953-09-29
•
Expires: 1969-02-16
Abstract
No abstract record available.
Inventors
- 👤 Francis J Pepersack
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 10:02
CPC Classifications
B; B64; B64D; B64D37/00; B64D37/32
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
GB190707709A
Cited
US1695076A
Cited
GB467334A
Cited
US2063430A
Cited
FR47829E
Cited
US2387598A
Cited
US2403749A
Cited
US2519393A
Cited
US2578090A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1956-09-28 | 1957-03-30 | 1957-09-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1960-09-28 | 1961-03-30 | 1961-09-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1964-09-28 | 1965-03-30 | 1965-09-29 | $7700.00 | Window Closed / Lapsed |