US2688313A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Fluid pressure reciprocating motor and control valve apparatus
Assignee: United States Department of the Navy
•
Filing: 1950-03-21
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Granted: 1954-09-07
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Expires: 1970-03-21
Abstract
No abstract record available.
Inventors
- 👤 William E Bauer
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 18:57
CPC Classifications
F; F02; F02K; F02K1/00; F02K1/06; F02K1/15; F15; F15B; F15B15/00; F15B15/08; F15B15/14; F15B15/1423; F15B15/1485; F15B21/00; F15B21/04; F15B21/042; F15B21/0423; Y; Y10; Y10T; Y10T137/00; Y10T137/8593; Y10T137/86493; Y10T137/86574; Y10T137/8667; Y10T137/86694; Y10T137/8671
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US635848A
Cited
US844090A
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US1219334A
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US1952806A
Cited
US2204649A
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US2575879A
Cited
US2477490A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1957-09-06 | 1958-03-08 | 1958-09-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1961-09-06 | 1962-03-08 | 1962-09-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1965-09-06 | 1966-03-08 | 1966-09-07 | $7700.00 | Window Closed / Lapsed |