Patent US3489036A successfully refreshed from Google Patents.
US3489036A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Hydromechanical transmission
Assignee: General Electric Co
•
Filing: 1967-12-29
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Granted: 1970-01-13
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Expires: 1987-12-29
Abstract
No abstract record available.
Inventors
- 👤 Sanford Charlton Cockrell
- 👤 Robert John Dorgan
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 20:09
CPC Classifications
F; F16; F16H; F16H47/00; F16H47/02; F16H47/04
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1056292A
Cited
US2102634A
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US2164504A
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US2353136A
Cited
US2817250A
Cited
FR1148662A
Cited
US3199376A
Cited
US3368425A
Cited
US3405573A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1973-01-12 | 1973-07-14 | 1974-01-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1977-01-12 | 1977-07-14 | 1978-01-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1981-01-12 | 1981-07-14 | 1982-01-13 | $7700.00 | Window Closed / Lapsed |