Patent US3400787A successfully refreshed from Google Patents.
US3400787A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Duo-servo parking brake combined with non-servo service brake
Assignee: Motors Liquidation Co
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Filing: 1965-12-15
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Granted: 1968-09-10
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Expires: 1985-12-15
Abstract
No abstract record available.
Inventors
- 👤 Norbert L Keller
- 👤 Jack T Cornillaud
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 16:22
CPC Classifications
F; F16; F16D; F16D51/00; F16D51/46; F16D51/48; F16D51/50; F16D51/16; F16D51/18; F16D51/20; F16D51/24; F16D2125/00; F16D2125/18; F16D2125/58; F16D2125/60; F16D2125/68
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1971-09-10 | 1972-03-11 | 1972-09-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-09-10 | 1976-03-11 | 1976-09-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-09-10 | 1980-03-11 | 1980-09-10 | $7700.00 | Window Closed / Lapsed |