Patent US2977138A successfully refreshed from Google Patents.
US2977138A
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Assignee: Motors Liquidation Co
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Filing: 1957-04-12
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Granted: 1961-03-28
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Expires: 1977-04-12
Abstract
No abstract record available.
Inventors
- 👤 Jr Richard J Brittain
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 23:32
CPC Classifications
F; F16; F16J; F16J15/00; F16J15/16; F16J15/32; F16J15/3204; F16J15/3232; B; B61; B61F; B61F15/00; B61F15/20; B61F15/22; F16C; F16C33/00; F16C33/72; F16C33/726; F16C33/76; F16C33/78; F16C33/7803; F16C19/00; F16C19/22; F16C19/24; F16C19/28; F16C2326/00; F16C2326/10; F16C2361/00; F16C2361/31
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2386496A
Cited
US2486088A
Cited
US2446380A
Cited
US2597516A
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US2676073A
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US2783102A
Cited
GB715982A
Cited
US2736586A
Cited
US2804325A
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US2834616A
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US2830858A
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US2891827A
Cited
DE800550C
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1964-03-27 | 1964-09-26 | 1965-03-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1968-03-27 | 1968-09-26 | 1969-03-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1972-03-27 | 1972-09-26 | 1973-03-28 | $7700.00 | Window Closed / Lapsed |