US3113490A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Fluid motor
Assignee: Individual
•
Filing: 1961-03-16
•
Granted: 1963-12-10
•
Expires: 1981-03-16
Abstract
No abstract record available.
Inventors
- 👤 Paul J Weaver
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 13:48
CPC Classifications
F; F15; F15B; F15B15/00; F15B15/08; F15B15/14; F15B15/1423; F15B15/1438
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
147 words
A FLUID MOTOR COMPRISING: A CYLINDER HAVING A CYLINDRICAL INTERNAL BORE WITH A FIRST AND A SECOND END, A CENTRAL AXIS, AND AN INTERNAL RETAINER GROOVE IN THE WALL OF SAID BORE ADJACENT TO EACH OF SAID ENDS; A FIRST AND A SECOND END CAP ADAPTED TO ABUT RESPECTIVE FIRST AND SECOND ENDS OF THE CYLINDER, EACH OF SAID END CAPS HAVING AN INTERNALLY THREADED HOLE THERETHROUGH WITH AN AXIS COINCIDENT WITH THE SAID CENTRAL AXIS; A RETAINER SEATED IN EACH OF SAID RING GROOVES AND PROJECTING RADIALLY INTO THE BORE; A FIRST AND A SECOND END CLAMP; AN EXTERNAL SHOULDER ON EACH END CLAMP ADAPTED TO ENTER THE BORE AND ENGAGE A RESPECTIVE RETAINERS AN EXTERNALLY THREADED NECK ON EACH END CLAMP ADAPTED TO ENTER AND MAKE THREADED ENGAGEMENT IN THE THREADED HOLE IN THE RESPECTIVE END CAP, WHEREBY THE END CAP IS DRAWN AGAINST THE
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1966-12-09 | 1967-06-10 | 1967-12-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-12-09 | 1971-06-10 | 1971-12-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-12-09 | 1975-06-10 | 1975-12-10 | $7700.00 | Window Closed / Lapsed |