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Patent US2977018A successfully refreshed from Google Patents.
US2977018A
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US
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Underwater fuel storage
Assignee: Individual
•
Filing: 1960-03-04
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Granted: 1961-03-28
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Expires: 1980-03-04
Abstract
No abstract record available.
Inventors
- 👤 Filmore O Frye
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 20:53
CPC Classifications
B; B65; B65D; B65D88/00; B65D88/78
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US239066A
Cited
US1859322A
Cited
FR860130A
Cited
US2536320A
Cited
US2647657A
Cited
US2798639A
Cited
US2924350A
Cited
US2915097A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1964-03-27 | 1964-09-26 | 1965-03-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1968-03-27 | 1968-09-26 | 1969-03-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1972-03-27 | 1972-09-26 | 1973-03-28 | $7700.00 | Window Closed / Lapsed |