USRE27723E
Expired / Lapsed
US
⏱️ 0.0 years remaining
Radiation sensitive position encoder using coded discs
Assignee: —
•
Filing: 1971-06-17
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Granted: 1973-08-07
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Expires: 1991-06-17
Abstract
Abstract A POSITION ENCORDED FOR USE IN A AUTOMATIC REMOTE METER READING SYSTEM AND INCLUDING A PAIR OF CODED DISCS DISPOSED IN A PARALLEL RELATION AND EACH HAVING AN ARRAY OF POSITION CODING ELEMENTS. A PLURALITY OF PHOTOCELLS ARE DISPOSED BETWEEN THE DISCS AND ARE ARRANGED TO BE SELECTIVELY ENERGIZED FROM THEIR OPPOSITE SIDES BY INDIVIDUAL ILLUMINATING MEANS ASSOCIATED WITH EACH DISC. THE PRESENCE OR ABSENCE OF ILLUMINATION ON EACH PHOTOCELL IS OPERATIVE TO MODIFY THE PARAMETERS OF AN OSCILLATING CIRCUIT SO THAT A DIFFERENT TONE SIGNAL WILL BE PROVIDED TO AN INTERROGATOR FOR EACH POSITION OF THE CODED DISCS.
Inventors
No inventors recorded.
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 00:31
CPC Classifications
H; H03; H03M; H03M1/00; H03M1/12; H03M1/22; H03M1/24; H03M1/28; H03M1/282; G; G01; G01D; G01D4/00; G01D4/002; G01D4/004; G01D5/00; G01D5/12; G01D5/244; G01D5/249; G01D5/2492; H04; H04M; H04M11/00; H04M11/002; Y; Y02; Y02B; Y02B90/00; Y02B90/20; Y04; Y04S; Y04S20/00; Y04S20/30
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) | 1976-08-06 | 1977-02-05 | 1977-08-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-08-06 | 1981-02-05 | 1981-08-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-08-06 | 1985-02-05 | 1985-08-07 | $7700.00 | Window Closed / Lapsed |