USRE27728E
Expired / Lapsed
US
⏱️ 0.0 years remaining
Register- cor rectin
Assignee: LAC DU FLAMBEAU BAND OF LAKE SUPERIOR CHIPPEWA INDIANS
•
Filing: 1971-12-01
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Granted: 1973-08-14
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Expires: 1991-12-01
Abstract
Abstract AN APPARATUS FOR MEASURING VARIABLE CONDITIONS OF A MOVEABLE ELEMENT INCLUDING A REFLECTING MEANS ATTACHED TO THE ELEMENT FOR DIRECTING LIGHT TO A CODED MIRROR. THE LIGHT IS REFLECTED BACK TO PHOTO-SENSITIVE MEANS WHICH ARE CONNECTED TO DIGITAL DISPLAY MEANS SO THAT DIGITAL REPRESENTATIONS CAN BE PRODUCED DEPENDING ON THE POSITION OF THE MOVEABLE ELEMENT.
Inventors
No inventors recorded.
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 14:47
CPC Classifications
G; G01; G01R; G01R17/00; H; H03; H03M; H03M1/00; H03M1/12; H03M1/22; H03M1/24; H03M1/28; H03M1/30; H03M1/308; H03M1/10; H03M1/1066
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) | 1976-08-13 | 1977-02-12 | 1977-08-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-08-13 | 1981-02-12 | 1981-08-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-08-13 | 1985-02-12 | 1985-08-14 | $7700.00 | Window Closed / Lapsed |