Patent US1082993A successfully refreshed from Google Patents.
US3562729A
Expired / Lapsed
US
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Two wire mv./v. transmitter
Assignee: Honeywell Inc
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Filing: 1967-09-08
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Granted: 1971-02-09
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Expires: 1987-09-08
Abstract
Abstract THERE IS DISCLOSED A VOLTAGE (MILLIVOLTS)-TO-CURRENT TRANSDUCER WHICH TRANSMITS A CURRENT SIGNAL TO A REMOTE CENTRAL STATION, WHICH INCLUDES A POWER SUPPLY FOR A UTILIZATION DEVICE AT THE REMOTE LOCATION, OVER A TWO-WIRE TRANSMISSION LINE. THE TRANSMISSION LINE CARRIES BOTH THE SIGNAL CURRENT FROM THE TRANSMITTER TO THE REMOTE STATION AND THE TOTAL POWER SUPPLY FOR THE TRANSMITTER.
Inventors
- 👤 Edward T E Hurd
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 00:33
CPC Classifications
G; G08; G08C; G08C19/00; G08C19/02; G01; G01K; G01K1/00; G01K1/02; G01K1/024; Y; Y10; Y10S; Y10S323/00; Y10S323/909
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 |