Patent US2664867A successfully refreshed from Google Patents.
US2664867A
Expired / Lapsed
US
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Engine governor
Assignee: Motors Liquidation Co
•
Filing: 1951-02-14
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Granted: 1954-01-05
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Expires: 1971-02-14
Abstract
No abstract record available.
Inventors
- 👤 Herman L Hartzell
- 👤 Argyle G Lautzenhiser
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 23:10
CPC Classifications
F; F02; F02D; F02D9/00; F02D2700/00; F02D2700/02; F02D2700/0217; F02D2700/0225; F02D2700/0228; F02D2700/023; F02D2700/0233; Y; Y10; Y10T; Y10T137/00; Y10T137/0971; Y10T137/108; Y10T137/1135
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US442462A
Cited
US1329385A
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US2142403A
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US2375429A
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US2381550A
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US2368995A
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US2368822A
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US2393556A
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US2377256A
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US2432166A
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US2381131A
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US2416110A
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US2415510A
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US2399080A
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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) | 1957-01-04 | 1957-07-06 | 1958-01-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1961-01-04 | 1961-07-06 | 1962-01-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1965-01-04 | 1965-07-06 | 1966-01-05 | $7700.00 | Window Closed / Lapsed |