US2964716A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Displacement-to-frequency transducer
Assignee: RTX Corp
•
Filing: 1957-07-29
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Granted: 1960-12-13
•
Expires: 1977-07-29
Abstract
No abstract record available.
Inventors
- 👤 Berman Nelson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 16:28
CPC Classifications
G; G01; G01D; G01D5/00; G01D5/12; G01D5/244; G01D5/248; G01D5/14; G01D5/20; G01D5/204; G01D2205/00; G01D2205/70; G01D2205/77; G01D2205/777
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2329021A
Cited
US2407536A
Cited
US2480265A
Cited
US2819352A
Cited
US2813976A
Cited
US2854580A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1963-12-13 | 1964-06-13 | 1964-12-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-12-13 | 1968-06-13 | 1968-12-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-12-13 | 1972-06-13 | 1972-12-13 | $7700.00 | Window Closed / Lapsed |