Patent US2828840A successfully refreshed from Google Patents.
US2828840A
Expired / Lapsed
US
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Liquid cooled friction brake
Assignee: Motors Liquidation Co
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Filing: 1955-04-28
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Granted: 1958-04-01
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Expires: 1975-04-28
Abstract
No abstract record available.
Inventors
- 👤 Oliver K Kelley
- 👤 Gilbert K Hause
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 12:34
CPC Classifications
F; F16; F16D; F16D65/00; F16D65/78; F16D65/84; F16D65/853; F16D55/00; F16D55/24; F16D55/26; F16D55/36; F16D55/40; F16D2055/0004; F16D2055/0058; F16D69/00; F16D2069/004; F16D65/02; F16D65/12; F16D65/127
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) | 1961-03-31 | 1961-09-30 | 1962-04-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-03-31 | 1965-09-30 | 1966-04-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-03-31 | 1969-09-30 | 1970-04-01 | $7700.00 | Window Closed / Lapsed |