Patent US3587347A successfully refreshed from Google Patents.
US3587347A
Expired / Lapsed
US
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Variable speed transmission for automotive vehicles
Assignee: Aisin AW Co Ltd
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Filing: 1968-10-10
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Granted: 1971-06-28
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Expires: 1988-10-10
Abstract
Abstract THE SPECIFICATION DESCRIBES A VARIABLE SPEED HYDRAULICALLY OPERATED TRANSMISSION FOR AN AUTOMATIVE VEHICLE INCLUDING THREE EPICYCLIC GEAR SETS. CONTROL OF GEAR CHANGE IS EFFECTED BY HYDRAULICALLY OPERATED BRAKES AND CLUTCHES. MOST OF THE COMPONENTS OF THE BRAKES AND CLUTCHES ARE FORMED AS STEEL PRESSINGS. THIS REDUCES THE BULK WEIGHT AND COST OF THE TRANSMISSION.
Inventors
- 👤 Carl W Hanzi
- 👤 James M Laing
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 19:47
CPC Classifications
F; F16; F16D; F16D25/00; F16D25/12; F16D25/06; F16D25/062; F16D25/063; F16D25/0635; F16D25/0638; F16H; F16H3/00; F16H3/44; F16H3/62; F16H3/66; F16H57/00; F16H57/08; F16H57/082; Y; Y10; Y10T; Y10T29/00; Y10T29/49; Y10T29/49462; Y10T29/49465
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1974-06-27 | 1974-12-27 | 1975-06-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-06-27 | 1978-12-27 | 1979-06-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-06-27 | 1982-12-27 | 1983-06-28 | $7700.00 | Window Closed / Lapsed |