US3103997A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Fluid retarder system
Assignee: Doosan Bobcat North America Inc
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Filing: 1961-01-09
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Granted: 1963-09-17
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Expires: 1981-01-09
Abstract
No abstract record available.
Inventors
- 👤 Noah A Shealy
- 👤 Wayne R Howard
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 13:21
CPC Classifications
F; F16; F16D; F16D57/00; F16D57/06; F16D57/04
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
85 words
A CONTROL SYSTEM FOR A FLUID RETARDER HAVING AN INLET AND A SEPARATE OUTLET, COMPRISING A FLUID STORAGE DEVICE, A PUMP, A FLUID PRESSURE REGULATOR, A HEAT EXCHANGER, A CONTROL VALVE FOR THE INLET TO THE RETARDER, FIRST FLUID CONDUIT MEANS INTERCONNECTING THE SAID FLUID STORAGE DEVICE WITH THE INLET OF THE SAID PUMP, SECOND FLUID CONDUIT MEANS INTERCONNECTING THE OUTLET OF THE SAID PUMP WITH THE SAID FLUID PRESSURE REGULATOR AND THE FLUID PRESSURE REGULATOR WITH THE INLET OF THE SAID HEAT EXCHANGER, THIRD
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) | 1966-09-16 | 1967-03-18 | 1967-09-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-09-16 | 1971-03-18 | 1971-09-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-09-16 | 1975-03-18 | 1975-09-17 | $7700.00 | Window Closed / Lapsed |