Patent US3304412A successfully refreshed from Google Patents.
US3304412A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Vehicle reading system using inboard light
Assignee: Control Data Corp
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Filing: 1963-01-29
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Granted: 1967-02-14
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Expires: 1983-01-29
Abstract
No abstract record available.
Inventors
- 👤 Rabinow Jacob
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 23:42
CPC Classifications
B; B61; B61L; B61L25/00; B61L25/02; B61L25/04; B61L25/041
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
115 words
A VEHICLE DATA SYSTEM FOR VEHICLES WHICH OPERATE ON A TRACK, WHERE A TYPICAL VEHICLE HAS WHEELS ON THE TRACK AND A VEHICLE STRUCTURE ABOVE THE TRACK SURFACE AND OVERHANGING THE AREA OUTBOARD ON THE TRACK ON BOTH SIDES THEREOF, A CODE MEMBER WITH LIGHT-TRANSCONDUCTIVE SUBAREAS DEFINING THE CODE, SAID MEMBER ATTACHED TO A PART OF SAID STRUCTURE TO POSITION SAID MEMBER ABOVE SAID AREA OUTBOARD OF ONE OF THE TRACK RAILS, A LIGHT SOURCE DEVICE AND AN OPTICAL SENSING DEVICE IN OPTICAL ALIGNMENT WITH EACH OTHER TO ESTABLISH AN OPTICAL PATH THEREBETWEEN, ONE DEVICE BEING LOWER THAN THE OTHER SO THAT SAID PATH IS INCLINED RELATIVE TO SAID AREA, AND THE LOWER DEVICE LOCATED
Claim 2
Dependent Claim
115 words
A VEHICLE DATA SYSTEM FOR VEHICLES WHICH OPERATE ON A TRACK, WHERE A TYPICAL VEHICLE HAS WHEELS ON THE TRACK AND A VEHICLE STRUCTURE ABOVE THE TRACK SURFACE AND OVERHANGING THE AREA OUTBOARD ON THE TRACK ON BOTH SIDES THEREOF, A CODE MEMBER WITH LIGHT-TRANSCONDUCTIVE SUBAREAS DEFINING THE CODE, SAID MEMBER ATTACHED TO A PART OF SAID STRUCTURE TO POSITION SAID MEMBER ABOVE SAID AREA OUTBOARD OF ONE OF THE TRACK RAILS, A LIGHT SOURCE DEVICE AND AN OPTICAL SENSING DEVICE IN OPTICAL ALIGNMENT WITH EACH OTHER TO ESTABLISH AN OPTICAL PATH THEREBETWEEN, ONE DEVICE BEING LOWER THAN THE OTHER SO THAT SAID PATH IS INCLINED RELATIVE TO SAID AREA, AND THE LOWER DEVICE LOCATED
References Cited (Backward Citations)
US2581552A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1970-02-13 | 1970-08-15 | 1971-02-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-02-13 | 1974-08-15 | 1975-02-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-02-13 | 1978-08-15 | 1979-02-14 | $7700.00 | Window Closed / Lapsed |