US2511992A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Internal-combustion engine
Assignee: Individual
•
Filing: 1945-04-11
•
Granted: 1950-06-20
•
Expires: 1965-04-11
Abstract
No abstract record available.
Inventors
- 👤 Thomas E Quick
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 20:09
CPC Classifications
F; F02; F02B; F02B3/00; F02B2720/00; F02B2720/22; F02B2720/226
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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US1560556A
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US1696799A
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US2076030A
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US2010469A
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US1977752A
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US2093592A
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US2113601A
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US2142280A
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US2113602A
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US2100143A
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US2002483A
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US2002482A
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US2157764A
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1953-06-19 | 1953-12-19 | 1954-06-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1957-06-19 | 1957-12-19 | 1958-06-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1961-06-19 | 1961-12-19 | 1962-06-20 | $7700.00 | Window Closed / Lapsed |