Patent US2970574A successfully refreshed from Google Patents.
US2970574A
Expired / Lapsed
US
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Dual piston hydraulic centering actuator
Assignee: Motors Liquidation Co
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Filing: 1959-04-14
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Granted: 1961-02-07
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Expires: 1979-04-14
Abstract
No abstract record available.
Inventors
- 👤 Howard M Geyer
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 09:31
CPC Classifications
F; F15; F15B; F15B15/00; F15B15/02; F15B15/06; F15B15/068; B; B64; B64C; B64C25/00; B64C25/32; B64C25/50; F15B21/00
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) | 1964-02-07 | 1964-08-08 | 1965-02-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1968-02-07 | 1968-08-08 | 1969-02-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1972-02-07 | 1972-08-08 | 1973-02-07 | $7700.00 | Window Closed / Lapsed |