US3237614A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Engine cooling system
Assignee: Caterpillar Inc
•
Filing: 1964-09-22
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Granted: 1966-03-01
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Expires: 1984-09-22
Abstract
No abstract record available.
Inventors
- 👤 Erwin J H Bentz
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 16:31
CPC Classifications
F; F01; F01P; F01P11/00; F01P11/10
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
66 words
IN AN ENGINE COOLING SYSTEM INCLUDING A RADIATOR DISPOSED ADJACENT AN ENGINE AND HAVING MEANS TO CIRCULATE ENGINE COOLANT THROUGH THE RADIATOR, A FAN FOR DRAWING AIR FROM THE VICINITY OF THE ENGINE THROUGH THE RADIATOR TO ABSORB HEAT OF THE COOLANT THEREIN AND SHROUD MEANS ENCLOSING THE MAJOR PORTION OF THE EXHAUST MANIFOLD OF THE ENGINE TO PREVENT CONTACT OF SUCH AIR WITH SAID MANIFOLD.
Claim 2
Dependent Claim
66 words
IN AN ENGINE COOLING SYSTEM INCLUDING A RADIATOR DISPOSED ADJACENT AN ENGINE AND HAVING MEANS TO CIRCULATE ENGINE COOLANT THROUGH THE RADIATOR, A FAN FOR DRAWING AIR FROM THE VICINITY OF THE ENGINE THROUGH THE RADIATOR TO ABSORB HEAT OF THE COOLANT THEREIN AND SHROUD MEANS ENCLOSING THE MAJOR PORTION OF THE EXHAUST MANIFOLD OF THE ENGINE TO PREVENT CONTACT OF SUCH AIR WITH SAID MANIFOLD.
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) | 1969-02-28 | 1969-08-30 | 1970-03-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-02-28 | 1973-08-30 | 1974-03-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-02-28 | 1977-08-30 | 1978-03-01 | $7700.00 | Window Closed / Lapsed |