US3353590A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Unitary oil filtering and cooling attachment for internal combustion engines
Assignee: HOLMAN AND MOODY Inc
•
Filing: 1965-07-12
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Granted: 1967-11-21
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Expires: 1985-07-12
Abstract
No abstract record available.
Inventors
- 👤 John C Holman
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 22:40
CPC Classifications
F; F28; F28F; F28F27/00; F28F27/02; F01; F01M; F01M1/00; F01M1/10; F01M5/00; F01M5/002; F01M2001/105; F01M2001/1092; F28F2250/00; F28F2250/06
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
158 words
UNITARY OIL FILTERING AND COOLING ATTACHMENT FOR AN INTERNAL COMBUSTION ENGINE COMPRISING A UNITARY HOUSING, OIL CONDUIT MEANS FORMED BY THE INTERNAL WALLS OF SAID HOUSING FOR THE PASSAGE OF OIL THERETHROUGH AND ADPATED TO COMMUNICATE WITH THE INTERNAL COMBUSTION ENGINE FOR RECEIVING OIL FROM THE ENGINE AND FOR RETURNING OIL TO THE ENGINE, A PLURALITY OF FILTERS CARRIED BY SAID HOUSING AND COMMUNICATING IN PARALLEL WITH SAID CONDUIT MEANS FOR RECEIVING AND FILTERING THE OIL PASSSING THERETHROUGH, TEMPERATURE RESPONSIVE VALVE MEANS CARRIED BY SAID HOUSING AND COMMUNICATING WITH SAID CONDUIT MEANS FOR RECEIVING AND RESPONDING TO THE TEMPERATURE OF THE OIL FOR CONTROLLING THE FLOW OF OIL THERETHROUGH, COOLING MEANS DISPOSED WITHIN SAID HOUSING AND COMMUNICATING WITH SAID TEMPERATURE RESPONSIVE VALVE MEANS AND SAID CONDUIT MEANS FOR RECEIVING AND COOLING OIL PASSING THERETHROUGH FROM SAID TEMPERATURE RESPONSIVE VALVE MEANS WHEN THE OIL IS ABOVE A PREDETERMINED TEMPERATURE, AND BYPASS MEANS FORMED BY SAID HOUSING AND COMMUNICATING WITH
Claim 2
Dependent Claim
158 words
UNITARY OIL FILTERING AND COOLING ATTACHMENT FOR AN INTERNAL COMBUSTION ENGINE COMPRISING A UNITARY HOUSING, OIL CONDUIT MEANS FORMED BY THE INTERNAL WALLS OF SAID HOUSING FOR THE PASSAGE OF OIL THERETHROUGH AND ADPATED TO COMMUNICATE WITH THE INTERNAL COMBUSTION ENGINE FOR RECEIVING OIL FROM THE ENGINE AND FOR RETURNING OIL TO THE ENGINE, A PLURALITY OF FILTERS CARRIED BY SAID HOUSING AND COMMUNICATING IN PARALLEL WITH SAID CONDUIT MEANS FOR RECEIVING AND FILTERING THE OIL PASSSING THERETHROUGH, TEMPERATURE RESPONSIVE VALVE MEANS CARRIED BY SAID HOUSING AND COMMUNICATING WITH SAID CONDUIT MEANS FOR RECEIVING AND RESPONDING TO THE TEMPERATURE OF THE OIL FOR CONTROLLING THE FLOW OF OIL THERETHROUGH, COOLING MEANS DISPOSED WITHIN SAID HOUSING AND COMMUNICATING WITH SAID TEMPERATURE RESPONSIVE VALVE MEANS AND SAID CONDUIT MEANS FOR RECEIVING AND COOLING OIL PASSING THERETHROUGH FROM SAID TEMPERATURE RESPONSIVE VALVE MEANS WHEN THE OIL IS ABOVE A PREDETERMINED TEMPERATURE, AND BYPASS MEANS FORMED BY SAID HOUSING AND COMMUNICATING WITH
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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) | 1970-11-20 | 1971-05-22 | 1971-11-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-11-20 | 1975-05-22 | 1975-11-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-11-20 | 1979-05-22 | 1979-11-21 | $7700.00 | Window Closed / Lapsed |