US2725548A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Variable-capacitor transducer
Assignee: Harris Transducer Corp
•
Filing: 1951-07-24
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Granted: 1955-11-29
•
Expires: 1971-07-24
Abstract
No abstract record available.
Inventors
- 👤 Wilbur T Harris
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 03:19
CPC Classifications
G; G01; G01H; G01H11/00; G01H11/06; G01L; G01L9/00; G01L9/0001; G01L9/0005
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2064489A
Cited
US2473556A
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US2411117A
Cited
US2413116A
Cited
US2548947A
Cited
US2648823A
Cited
US2614416A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1958-11-28 | 1959-05-30 | 1959-11-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1962-11-28 | 1963-05-30 | 1963-11-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1966-11-28 | 1967-05-30 | 1967-11-29 | $7700.00 | Window Closed / Lapsed |