US2974654A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Aluminum die cast engine
Assignee: Motors Liquidation Co
•
Filing: 1959-07-01
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Granted: 1961-03-14
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Expires: 1979-07-01
Abstract
No abstract record available.
Inventors
- 👤 Christiaan H Bouvy
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 23:13
CPC Classifications
F; F02; F02B; F02B75/00; F02B75/16; F02B75/18; F02B75/22; F02B2275/00; F02B2275/34; F02F; F02F1/00; F02F1/24; F02F2001/244; F02F2001/245; F02F2200/00; F02F2200/06; F05; F05C; F05C2201/00; F05C2201/02; F05C2201/021
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1325765A
Cited
US2675791A
Cited
US1293712A
Cited
US1293279A
Cited
US1617986A
Cited
US1500166A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1964-03-13 | 1964-09-12 | 1965-03-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1968-03-13 | 1968-09-12 | 1969-03-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1972-03-13 | 1972-09-12 | 1973-03-14 | $7700.00 | Window Closed / Lapsed |