US2804061A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Valve-actuating mechanism for internal combustion engines
Assignee: Individual
•
Filing: 1955-01-04
•
Granted: 1957-08-27
•
Expires: 1975-01-04
Abstract
No abstract record available.
Inventors
- 👤 John G Gamble
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 16:23
CPC Classifications
F; F01; F01L; F01L13/00; F01L13/0015; F01L13/0036; F01L13/0042
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
DE406280C
Cited
US2191459A
Cited
US1687082A
Cited
FR676020A
Cited
US1863875A
Cited
US2528983A
Cited
US2670595A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1960-08-26 | 1961-02-25 | 1961-08-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1964-08-26 | 1965-02-25 | 1965-08-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1968-08-26 | 1969-02-25 | 1969-08-27 | $7700.00 | Window Closed / Lapsed |