Patent US2840427A successfully refreshed from Google Patents.
US2840427A
Expired / Lapsed
US
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Piston
Assignee: Motors Liquidation Co
•
Filing: 1955-06-10
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Granted: 1958-06-24
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Expires: 1975-06-10
Abstract
No abstract record available.
Inventors
- 👤 Dolza John
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 14:22
CPC Classifications
F; F02; F02F; F02F3/00; F02F3/0015; F02F3/0023; F05; F05C; F05C2201/00; F05C2201/02; F05C2201/021; F05C2201/04; F05C2201/0433; F05C2201/0448
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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Cited
US1390193A
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US1089823A
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US1364102A
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US1459664A
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US1482778A
Cited
US1515543A
Cited
US1739007A
Cited
US2059713A
Cited
US2698210A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1961-06-23 | 1961-12-23 | 1962-06-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-06-23 | 1965-12-23 | 1966-06-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-06-23 | 1969-12-23 | 1970-06-24 | $7700.00 | Window Closed / Lapsed |