Patent US2859839A successfully refreshed from Google Patents.
US2859839A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Combination hydraulic and mechanical brake
Assignee: Motors Liquidation Co
•
Filing: 1953-12-21
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Granted: 1958-11-11
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Expires: 1973-12-21
Abstract
No abstract record available.
Inventors
- 👤 Maurice A Thorne
- 👤 Lothrop M Forbush
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 19:04
CPC Classifications
F; F16; F16D; F16D65/00; F16D65/02; F16D65/04; F16D65/08; F16D65/09; F16D65/091; F16D51/00; F16D51/46; F16D51/48
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2000011A
Cited
FR802023A
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FR802620A
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US2082244A
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US2111297A
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US2256721A
Cited
US2294329A
Cited
US2267225A
Cited
US2372415A
Cited
US2554291A
Cited
US2649922A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1961-11-10 | 1962-05-12 | 1962-11-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-11-10 | 1966-05-12 | 1966-11-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-11-10 | 1970-05-12 | 1970-11-11 | $7700.00 | Window Closed / Lapsed |