US2669227A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Overhead valve engine
Assignee: Old Carco LLC
•
Filing: 1950-04-15
•
Granted: 1954-02-16
•
Expires: 1970-04-15
Abstract
No abstract record available.
Inventors
- 👤 William E Drinkard
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 22:48
CPC Classifications
F; F02; F02B; F02B23/00; F02B23/08; F02B2275/00; F02B2275/34; F02B75/00; F02B75/16; F02B75/18; F02B75/22; Y; Y02; Y02T; Y02T10/00; Y02T10/10; Y02T10/12
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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GB466677A
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GB475860A
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GB635240A
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GB567029A
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US2515347A
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GB591157A
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US2546263A
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US2481890A
Cited
FR968120A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1957-02-15 | 1957-08-17 | 1958-02-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1961-02-15 | 1961-08-17 | 1962-02-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1965-02-15 | 1965-08-17 | 1966-02-16 | $7700.00 | Window Closed / Lapsed |