Patent US2990919A successfully refreshed from Google Patents.
US2990919A
Expired / Lapsed
US
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Hydrodynamic brake system
Assignee: Motors Liquidation Co
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Filing: 1958-03-31
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Granted: 1961-07-04
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Expires: 1978-03-31
Abstract
No abstract record available.
Inventors
- 👤 Howard W Christenson
- 👤 Robert M Tuck
- 👤 Keith A Bailey
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 13:57
CPC Classifications
F; F16; F16D; F16D57/00; F16D57/04
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1915547A
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US1985889A
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US2170128A
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US2232252A
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US2716339A
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US2634830A
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US2498572A
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US2715876A
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US2827989A
Cited
US2889013A
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US2864473A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1964-07-03 | 1965-01-02 | 1965-07-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1968-07-03 | 1969-01-02 | 1969-07-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1972-07-03 | 1973-01-02 | 1973-07-04 | $7700.00 | Window Closed / Lapsed |