US3138969A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Transmission
Assignee: Motors Liquidation Co
•
Filing: 1959-02-24
•
Granted: 1964-06-30
•
Expires: 1979-02-24
Abstract
No abstract record available.
Inventors
- 👤 Mark E Fisher
- 👤 Robert H Schaefer
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 03:13
CPC Classifications
F; F16; F16H; F16H47/00; F16H47/06; F16H47/08; B; B60; B60K; B60K2704/00; B60K2704/02; Y; Y10; Y10S; Y10S74/00; Y10S74/01
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
147 words
IN A TRANSMISSION, DRIVE MEANS, DRIVEN MEANS, A FLUID DRIVE CONNECTING SAID DRIVE AND DRIVEN MEANS AND HAVING AN OPERATING CHAMBER WITH A FLUID INLET LINE AND A FLUID OUTLET LINE, A HYDRODYNAMIC BRAKE HAVING A BLADED ROTOR CONNECTED TO SAID DRIVEN MEANS AND A FLUID CHAMBER HAVING AN INLET PORT ADJACENT THE CENTER OF THE CHAMBER AND AN OUTLET PORT ADJACENT THE OUTER PERIMETER, A CHECK VALVE, BRAKE CONTROL VALVE MEANS CONNECTED TO SAID BRAKE INLET AND OUTLET PORTS, A COOLER HAVING A COOLER INLET PASSAGE AND OUTLET PASSAGE BOTH CONNECTED TO SAID BRAKE CONTROL VALVE MEANS, EXHAUST MEANS CONNECTED TO SAID COOLER OUTLET PASSAGE PROVIDING A LOW PRESSURE EXHAUST TO MAINTAIN A REDUCED PRESSURE IN SAID COOLER OUTLET PASSAGE, SOURCE MEANS PROVIDING FLUID UNDER PRESSURE, A FIRST PASSAGE CONNECTING SAID SOURCE MEANS TO SAID FLUID DRIVE INLET LINE, A SECOND PASSAGE CONNECTING SAID SOURCE MEANS
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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) | 1967-06-30 | 1967-12-30 | 1968-06-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-06-30 | 1971-12-30 | 1972-06-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-06-30 | 1975-12-30 | 1976-06-30 | $7700.00 | Window Closed / Lapsed |