US2833254A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Overhead valve engine
Assignee: Old Carco LLC
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Filing: 1955-01-04
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Granted: 1958-05-06
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Expires: 1975-01-04
Abstract
No abstract record available.
Inventors
- 👤 Melbourne L Carpentier
- 👤 William E Drinkard
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 19:31
CPC Classifications
F; F02; F02B; F02B75/00; F02B75/16; F02B75/18; F02B75/22; F01; F01L; F01L1/00; F01L1/12; F02B2275/00; F02B2275/34; F02F; F02F1/00; F02F1/24; F02F2001/244; F02F2001/245
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1961-05-05 | 1961-11-04 | 1962-05-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-05-05 | 1965-11-04 | 1966-05-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-05-05 | 1969-11-04 | 1970-05-06 | $7700.00 | Window Closed / Lapsed |