Patent US3337860A successfully refreshed from Google Patents.
US3337860A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Display tracking system
Assignee: International Business Machines Corp
•
Filing: 1964-12-31
•
Granted: 1967-08-22
•
Expires: 1984-12-31
Abstract
No abstract record available.
Inventors
- 👤 Jr Almerin C O'hara
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 12:59
CPC Classifications
G; G06; G06F; G06F3/00; G06F3/01; G06F3/03; G06F3/033; G06F3/038; G06F3/0386
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
96 words
A DISPLAY DEVICE INCLUDING A LIGHT SOURCE, MEANS ACSSOICATED WITH SAID LIGHT SOURCE FOR GENERATING A TRACKING SYMBOL COMPRISING A PLURALITY OF SPATIALLY ORIENTED INDICIA ON SAID DISPLAY DEVICE, EACH OF SAID INDICIA ELEMENTS IN SAID SYMBOL BEING GENERATED IN A PREDETERMINED TIMING SEQUENCE, AN OPTICAL TRANSDUCER, SAID TRANSDUCER HAVING A FIELD OF VIEW ADAPTED TO ENCOMPASS ALL OF SAID INDICIA ELEMENTS AND GENERATE RESPONSE SIGNALS FOR DETECTED INDICIA PERMUTATIONS, MEANS FOR ANALYZING THE TIMING RESPONSE OF SAID DETECTED INDICIA PERMUTATIONS TO PROVIDE AN INDICATION OF THE RELATIVE SPATIAL RELATIONSHIP OF INDICIA DETECTED BY SAID TRANSDUCER,
Claim 2
Dependent Claim
96 words
A DISPLAY DEVICE INCLUDING A LIGHT SOURCE, MEANS ACSSOICATED WITH SAID LIGHT SOURCE FOR GENERATING A TRACKING SYMBOL COMPRISING A PLURALITY OF SPATIALLY ORIENTED INDICIA ON SAID DISPLAY DEVICE, EACH OF SAID INDICIA ELEMENTS IN SAID SYMBOL BEING GENERATED IN A PREDETERMINED TIMING SEQUENCE, AN OPTICAL TRANSDUCER, SAID TRANSDUCER HAVING A FIELD OF VIEW ADAPTED TO ENCOMPASS ALL OF SAID INDICIA ELEMENTS AND GENERATE RESPONSE SIGNALS FOR DETECTED INDICIA PERMUTATIONS, MEANS FOR ANALYZING THE TIMING RESPONSE OF SAID DETECTED INDICIA PERMUTATIONS TO PROVIDE AN INDICATION OF THE RELATIVE SPATIAL RELATIONSHIP OF INDICIA DETECTED BY SAID TRANSDUCER,
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1970-08-21 | 1971-02-20 | 1971-08-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-08-21 | 1975-02-20 | 1975-08-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-08-21 | 1979-02-20 | 1979-08-22 | $7700.00 | Window Closed / Lapsed |