US2921641A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Engine speed governing means
Assignee: Motors Liquidation Co
•
Filing: 1956-09-20
•
Granted: 1960-01-19
•
Expires: 1976-09-20
Abstract
No abstract record available.
Inventors
- 👤 George H Wetterhahn
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 11:03
CPC Classifications
F; F02; F02D; F02D9/00; F02D2700/00; F02D2700/02; F02D2700/0217; F02D2700/0225; F02D2700/0228; F02D2700/023; F02D2700/0233
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1595113A
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US1843960A
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US2168232A
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US2367606A
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US2494422A
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US2657918A
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US2708979A
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US2664867A
Cited
US2672855A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1963-01-18 | 1963-07-20 | 1964-01-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-01-18 | 1967-07-20 | 1968-01-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-01-18 | 1971-07-20 | 1972-01-19 | $7700.00 | Window Closed / Lapsed |