US3562645A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Frequency transducer utilizing pulse generator producing frequency-responsive,variable-width output pulses
Assignee: General Electric Co
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Filing: 1967-06-23
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Granted: 1971-02-09
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Expires: 1987-06-23
Abstract
Abstract A FREQUENCY TRANSDUCER ADAPTD TO BE ENERGIZED BY AN ALTERNTING CURRENT SIGNAL HAVING MEANS TO PRODUCE FREQUENCY-INDICATING PULSES THE WIDTH OF WHICH VARIES IN RESPONSE TO THE MEASURED FREQUENCY.
Inventors
- 👤 Clarence W Hewlett Jr
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 15:34
CPC Classifications
G; G01; G01R; G01R23/00; G01R23/02
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1974-02-08 | 1974-08-10 | 1975-02-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-02-08 | 1978-08-10 | 1979-02-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-02-08 | 1982-08-10 | 1983-02-09 | $7700.00 | Window Closed / Lapsed |