US2761645A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Servo system
Assignee: Individual
•
Filing: 1951-01-24
•
Granted: 1956-09-04
•
Expires: 1971-01-24
Abstract
No abstract record available.
Inventors
- 👤 Franklin F Offner
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 21:10
CPC Classifications
F; F15; F15B; F15B11/00; F15B11/08; F15B13/00; F15B2211/00; F15B2211/40; F15B2211/405; F15B2211/40515; F15B2211/41; F15B2211/413; F15B2211/42; F15B2211/428; F15B2211/60; F15B2211/635; F15B2211/6355; F15B2211/67; Y; Y10; Y10T; Y10T137/00; Y10T137/2278
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1904475A
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US1196121A
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US674606A
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FR679003A
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US2012978A
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US2204640A
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US2219229A
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US2331817A
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US2542765A
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1959-09-04 | 1960-03-05 | 1960-09-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1963-09-04 | 1964-03-05 | 1964-09-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1967-09-04 | 1968-03-05 | 1968-09-04 | $7700.00 | Window Closed / Lapsed |