US2944536A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Overhead valve internal combustion engines
Assignee: Austin Motor Co Ltd
•
Filing: 1959-05-05
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Granted: 1960-07-12
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Expires: 1979-05-05
Abstract
No abstract record available.
Inventors
- 👤 Eric R Payne
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 17:28
CPC Classifications
F; F01; F01L; F01L1/00; F01L1/02; F01L1/04; F01L1/047; F02; F02B; F02B75/00; F02B75/16; F02B75/18; F02B75/22; F02B75/221; F02B2275/00; F02B2275/20
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) | 1963-07-12 | 1964-01-11 | 1964-07-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-07-12 | 1968-01-11 | 1968-07-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-07-12 | 1972-01-11 | 1972-07-12 | $7700.00 | Window Closed / Lapsed |