Patent US4086209A successfully refreshed from Google Patents.
Patent US3071118A successfully refreshed from Google Patents.
US3071118A
Expired / Lapsed
US
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Actuator valve means
Assignee: Individual
•
Filing: 1960-05-03
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Granted: 1963-01-01
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Expires: 1980-05-03
Abstract
No abstract record available.
Inventors
- 👤 James K Wilden
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 19:47
CPC Classifications
F; F01; F01L; F01L25/00; F01L25/02; F01L25/04; F01L25/06; F01L25/066; F04; F04B; F04B9/00; F04B9/08; F04B9/12; F04B9/123; F04B9/125
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
56 words
A CYLINDRICAL PISTON FOR AN ACTUATOR VALVE OF A WORK DEVICE, SAID PISTON HAVING A CIRCUMFERENTIAL RECESS INTERMEDIATE THE ENDS THEREOF, SAID PISTON HAVING PASSAGE MEANS SUNK IN THE PERIPHERAL FACE THEREOF AND EXTENDING FROM A POINT AT ONE SIDE OF THE RECESS TO THE CORRESPONDING END OF THE PISTON, THE PISTON ALSO HAVING A SECOND
Claim 2
Dependent Claim
56 words
A CYLINDRICAL PISTON FOR AN ACTUATOR VALVE OF A WORK DEVICE, SAID PISTON HAVING A CIRCUMFERENTIAL RECESS INTERMEDIATE THE ENDS THEREOF, SAID PISTON HAVING PASSAGE MEANS SUNK IN THE PERIPHERAL FACE THEREOF AND EXTENDING FROM A POINT AT ONE SIDE OF THE RECESS TO THE CORRESPONDING END OF THE PISTON, THE PISTON ALSO HAVING A SECOND
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) | 1965-12-31 | 1966-07-02 | 1967-01-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-12-31 | 1970-07-02 | 1971-01-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-12-31 | 1974-07-02 | 1975-01-01 | $7700.00 | Window Closed / Lapsed |