Patent US2690248A successfully refreshed from Google Patents.
US2690248A
Expired / Lapsed
US
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Clutch plate with grooves for lubricant or coolant
Assignee: Motors Liquidation Co
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Filing: 1950-10-04
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Granted: 1954-09-28
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Expires: 1970-10-04
Abstract
No abstract record available.
Inventors
- 👤 Charles J Mcdowall
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 13:14
CPC Classifications
F; F16; F16D; F16D13/00; F16D13/58; F16D13/60; F16D13/64; F16D13/648; F16D69/00; F16D2069/004
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
FR742120A
Cited
US986324A
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US1702116A
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US1898978A
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US2097710A
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US2163884A
Cited
US2163152A
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US2193524A
Cited
US2556809A
Cited
US2523501A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1957-09-27 | 1958-03-29 | 1958-09-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1961-09-27 | 1962-03-29 | 1962-09-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1965-09-27 | 1966-03-29 | 1966-09-28 | $7700.00 | Window Closed / Lapsed |