US2827989A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Hydrodynamic drive and brake
Assignee: Motors Liquidation Co
•
Filing: 1953-07-03
•
Granted: 1958-03-25
•
Expires: 1973-07-03
Abstract
No abstract record available.
Inventors
- 👤 Howard W Christenson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 05:14
CPC Classifications
F; F16; F16D; F16D57/00; F16D57/04; Y; Y10; Y10S; Y10S74/00; Y10S74/02; Y10T; Y10T74/00; Y10T74/18; Y10T74/18056; Y10T74/18072
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
DE537867C
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US1915547A
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US2170128A
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US2189189A
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US2452550A
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US2425171A
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US2634830A
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US2672953A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1961-03-24 | 1961-09-23 | 1962-03-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-03-24 | 1965-09-23 | 1966-03-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-03-24 | 1969-09-23 | 1970-03-25 | $7700.00 | Window Closed / Lapsed |