US2567690A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Cam for operating valves of internal-combustion engines
Assignee: Austin Motor Co Ltd
•
Filing: 1948-11-02
•
Granted: 1951-09-11
•
Expires: 1968-11-02
Abstract
No abstract record available.
Inventors
- 👤 John L H Bishop
- 👤 John H Weaving
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 06:07
CPC Classifications
F; F16; F16H; F16H53/00; F16H53/02; Y; Y10; Y10T; Y10T74/00; Y10T74/21; Y10T74/2101
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1175687A
Cited
US1254840A
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US1336447A
Cited
US1365735A
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US1705803A
Cited
US1543483A
Cited
US1583335A
Cited
US1635304A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1954-09-10 | 1955-03-12 | 1955-09-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1958-09-10 | 1959-03-12 | 1959-09-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1962-09-10 | 1963-03-12 | 1963-09-11 | $7700.00 | Window Closed / Lapsed |