Patent US2982374A successfully refreshed from Google Patents.
US2982374A
Expired / Lapsed
US
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Liquid storage tank for aircraft
Assignee: United Aircraft Products Inc
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Filing: 1959-02-25
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Granted: 1961-05-02
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Expires: 1979-02-25
Abstract
No abstract record available.
Inventors
- 👤 Paul R Hughes
- 👤 Jr Walter C Klank
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 19:11
CPC Classifications
B; B64; B64D; B64D37/00; B64D37/34; Y; Y10; Y10T; Y10T137/00; Y10T137/0753; Y10T137/0874
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1964-05-01 | 1964-10-31 | 1965-05-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1968-05-01 | 1968-10-31 | 1969-05-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1972-05-01 | 1972-10-31 | 1973-05-02 | $7700.00 | Window Closed / Lapsed |