Patent US3253772A successfully refreshed from Google Patents.
US3253772A
Expired / Lapsed
US
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Idle speed control
Assignee: Motors Liquidation Co
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Filing: 1963-12-13
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Granted: 1966-05-31
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Expires: 1983-12-13
Abstract
No abstract record available.
Inventors
- 👤 Leland C Parker
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 20:16
CPC Classifications
B; B60; B60H; B60H1/00; B60H1/00421; B60H1/0045; Y; Y10; Y10S; Y10S261/00; Y10S261/18
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
60 words
IN AN AIR CONDITIONED, ENGINE DRIVEN VEHICLE, AN ENGINE DRIVEN COMPRESSOR FOR THE AIR CONDITIONING SYSTEM, SAID COMPRESSOR INCLUDING A MAGNETIC CLUTCH HAVING A WINDING WHICH UPON ENERGIZATION CREATES A MAGNETIC FIELD CAUSING SAID CLUTCH TO DRIVINGLY COUPLE SAID COMPRESSOR TO THE ENGINE OF THE VEHICLE, A THROTTLE VALVE CONTROLLING THE ENGINE OF THE VEHICLE, A STOP CONTROLLING THE CLOSED
Claim 2
Dependent Claim
60 words
IN AN AIR CONDITIONED, ENGINE DRIVEN VEHICLE, AN ENGINE DRIVEN COMPRESSOR FOR THE AIR CONDITIONING SYSTEM, SAID COMPRESSOR INCLUDING A MAGNETIC CLUTCH HAVING A WINDING WHICH UPON ENERGIZATION CREATES A MAGNETIC FIELD CAUSING SAID CLUTCH TO DRIVINGLY COUPLE SAID COMPRESSOR TO THE ENGINE OF THE VEHICLE, A THROTTLE VALVE CONTROLLING THE ENGINE OF THE VEHICLE, A STOP CONTROLLING THE CLOSED
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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) | 1969-05-30 | 1969-11-29 | 1970-05-31 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-05-30 | 1973-11-29 | 1974-05-31 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-05-30 | 1977-11-29 | 1978-05-31 | $7700.00 | Window Closed / Lapsed |