US2796762A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Engine function efficiency meter
Assignee: LEE JEWELL
•
Filing: 1953-11-03
•
Granted: 1957-06-25
•
Expires: 1973-11-03
Abstract
No abstract record available.
Inventors
- 👤 William S Touchman
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 07:58
CPC Classifications
G; G01; G01F; G01F9/00; G01F9/02; G01F9/023; G01F9/026
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2454393A
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US1958610A
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FR828920A
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US2268072A
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US2422240A
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US2395042A
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US2500585A
Cited
US2507442A
Cited
US2587701A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1960-06-24 | 1960-12-24 | 1961-06-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1964-06-24 | 1964-12-24 | 1965-06-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1968-06-24 | 1968-12-24 | 1969-06-25 | $7700.00 | Window Closed / Lapsed |