US2518427A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Engine power analyzer
Assignee: LINDBERG JR
•
Filing: 1947-05-15
•
Granted: 1950-08-08
•
Expires: 1967-05-15
Abstract
No abstract record available.
Inventors
- 👤 Jr John E Lindberg
- 👤 Clifford L Sackett
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-22 23:03
CPC Classifications
F; F02; F02P; F02P17/00; F02P17/02; F02P17/04; F02P17/08; G; G01; G01M; G01M15/00; G01M15/04; G01M15/12
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2133437A
Cited
US2085203A
Cited
US2082030A
Cited
US2355363A
Cited
US2366355A
Cited
US2430154A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1953-08-07 | 1954-02-06 | 1954-08-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1957-08-07 | 1958-02-06 | 1958-08-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1961-08-07 | 1962-02-06 | 1962-08-08 | $7700.00 | Window Closed / Lapsed |