US2650352A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Variable inductance for measuring motion
Assignee: EDWARD G MARTIN
•
Filing: 1947-12-27
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Granted: 1953-08-25
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Expires: 1967-12-27
Abstract
No abstract record available.
Inventors
- 👤 Robert S Childs
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 21:36
CPC Classifications
G; G01; G01D; G01D5/00; G01D5/12; G01D5/14; G01D5/20; G01D5/204; G01D5/2066
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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USRE22139E
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US1196429A
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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) | 1956-08-24 | 1957-02-23 | 1957-08-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1960-08-24 | 1961-02-23 | 1961-08-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1964-08-24 | 1965-02-23 | 1965-08-25 | $7700.00 | Window Closed / Lapsed |