US3171256A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Hydrostatic transmission
Assignee: Individual
•
Filing: 1963-01-03
•
Granted: 1965-03-02
•
Expires: 1983-01-03
Abstract
No abstract record available.
Inventors
- 👤 John A Lauck
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 19:06
CPC Classifications
F; F16; F16H; F16H61/00; F16H61/38; F16H61/40; F16H61/4043; F16H39/00; F16H39/04; F16H39/42
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
54 words
A HYDROSTATIC TRANSMISSION COMPRISING A FLUID PUMP, SAID PUMP INCLUDING A VALVING PINTLE AND A ROTOR MOUNTED FOR ROTATION ABOUT AID PINTLE, A MOTOR DRIVEN BY THE OUTPUT OF SAID PUMP, AND FLUID PRESSURE MEANS OPERATIVE SEALINGLY TO SEAT SAID PINTLE WITHIN SAID ROTOR EFFECTIVELY TO PREVENT FLUID LEAKAGE BETWEEN SAID ROTOR AND PINTLE.
Claim 2
Dependent Claim
54 words
A HYDROSTATIC TRANSMISSION COMPRISING A FLUID PUMP, SAID PUMP INCLUDING A VALVING PINTLE AND A ROTOR MOUNTED FOR ROTATION ABOUT AID PINTLE, A MOTOR DRIVEN BY THE OUTPUT OF SAID PUMP, AND FLUID PRESSURE MEANS OPERATIVE SEALINGLY TO SEAT SAID PINTLE WITHIN SAID ROTOR EFFECTIVELY TO PREVENT FLUID LEAKAGE BETWEEN SAID ROTOR AND PINTLE.
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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) | 1968-03-01 | 1968-08-31 | 1969-03-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-03-01 | 1972-08-31 | 1973-03-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-03-01 | 1976-08-31 | 1977-03-02 | $7700.00 | Window Closed / Lapsed |