Patent US3224197A successfully refreshed from Google Patents.
US3224197A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Hydrostatic transmission
Assignee: Individual
•
Filing: 1963-10-03
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Granted: 1965-12-21
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Expires: 1983-10-03
Abstract
No abstract record available.
Inventors
- 👤 John A Lauck
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 11:21
CPC Classifications
F; F16; F16H; F16H61/00; F16H61/38; F16H61/40; F16H61/42; F16H61/437; F16H61/4043
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
54 words
A REVERSIBLE ROTOR-PINTLE TYPE FLUID PUMP FOR HYDROSTATIC TRANSMISSIONS AND THE LIKE COMPRISING A SEALING FLANGE ON SAID PINTLE ADAPTED SEALINGLY TO ENGAGE THE END OF SAID ROTOR, AND FLUID PRESSURE MEANS OPERATIVE TO URGE SAID PINTLE AND SEALING FLANGE INTO SEALING ENGAGEMENT WITH SAID ROTOR WHILE FLUID IS BEING PUMPED IN EITHER DIRECTION.
Claim 2
Dependent Claim
54 words
A REVERSIBLE ROTOR-PINTLE TYPE FLUID PUMP FOR HYDROSTATIC TRANSMISSIONS AND THE LIKE COMPRISING A SEALING FLANGE ON SAID PINTLE ADAPTED SEALINGLY TO ENGAGE THE END OF SAID ROTOR, AND FLUID PRESSURE MEANS OPERATIVE TO URGE SAID PINTLE AND SEALING FLANGE INTO SEALING ENGAGEMENT WITH SAID ROTOR WHILE FLUID IS BEING PUMPED IN EITHER DIRECTION.
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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) | 1968-12-20 | 1969-06-21 | 1969-12-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-12-20 | 1973-06-21 | 1973-12-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-12-20 | 1977-06-21 | 1977-12-21 | $7700.00 | Window Closed / Lapsed |