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US3454854A
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US
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Inductive transducer with servo system
Assignee: US Filter Wallace and Tiernan Inc
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Filing: 1967-10-02
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Granted: 1969-07-08
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Expires: 1987-10-02
Abstract
No abstract record available.
Inventors
- 👤 George M Booth
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 23:11
CPC Classifications
G; G01; G01D; G01D5/00; G01D5/12; G01D5/14; G01D5/20; C; C21; C21D; C21D9/00; H; H01; H01F; H01F29/00; H01F29/08
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2586010A
Cited
US2494579A
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US2839733A
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US3213395A
Cited
US3092995A
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US3153935A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1972-07-07 | 1973-01-06 | 1973-07-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-07-07 | 1977-01-06 | 1977-07-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-07-07 | 1981-01-06 | 1981-07-08 | $7700.00 | Window Closed / Lapsed |