Patent US3065528A successfully refreshed from Google Patents.
US3065528A
Expired / Lapsed
US
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Tool for replacing and removing keys on poppet valves
Assignee: Individual
•
Filing: 1959-10-22
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Granted: 1962-11-27
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Expires: 1979-10-22
Abstract
No abstract record available.
Inventors
- 👤 Calvert D Marshall
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 15:01
CPC Classifications
B; B25; B25B; B25B27/00; B25B27/14; B25B27/24; Y; Y10; Y10S; Y10S29/00; Y10S29/105; Y10T; Y10T29/00; Y10T29/53; Y10T29/53796; Y10T29/53817; Y10T29/53839; Y10T29/53991
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) | 1965-11-26 | 1966-05-28 | 1966-11-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-11-26 | 1970-05-28 | 1970-11-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-11-26 | 1974-05-28 | 1974-11-27 | $7700.00 | Window Closed / Lapsed |