US3274545A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Electronic display apparatus
Assignee: Rank Bush Murphy Ltd
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Filing: 1963-07-15
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Granted: 1966-09-20
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Expires: 1983-07-15
Abstract
No abstract record available.
Inventors
- 👤 Bowles Donald Clive
- 👤 Burrows Derek Raymond
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 07:13
CPC Classifications
G; G01; G01S; G01S1/00; G01S1/02
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
101 words
ELECTRONIC DISPLAY APPARATUS COMPRISING IN COMBINATION: A CATHODE RAY TUBE HAVING A LUMINESCENT SCREEN; MEANS FOR PRODUCING A LUMINOUS DISPLAY UPON SAID SCREEN; A PARTIAL REFLECTOR MOUNTED FOR MOVEMENT ABOUT AN AXIS; AN OPTICAL PATH WHEREBY AN IMAGE OF SAID SCREEN MAY BE VIEWED IN SAID REFLECTOR; ELECTRICAL POTENTIAL CONTROL MEANS OPERATED BY MOVEMENT OF SAID REFLECTOR; SHIFT MEANS PRODUCING A DISPLACEMENT OF SAID DISPLAY ON SAID SCREEN; AND MEANS FOR APPLYING SAID CONTROLLED POTENTIAL TO SAID SHIFT MEANS, THEREBY PRODUCING A DISPLACEMENT OF SAID IMAGE WHEN SAID REFLECTOR IS MOVED SUCH AS TO COMPENSATE FOR SAID MOVEMENT OF SAID REFLECTOR.
Claim 2
Dependent Claim
101 words
ELECTRONIC DISPLAY APPARATUS COMPRISING IN COMBINATION: A CATHODE RAY TUBE HAVING A LUMINESCENT SCREEN; MEANS FOR PRODUCING A LUMINOUS DISPLAY UPON SAID SCREEN; A PARTIAL REFLECTOR MOUNTED FOR MOVEMENT ABOUT AN AXIS; AN OPTICAL PATH WHEREBY AN IMAGE OF SAID SCREEN MAY BE VIEWED IN SAID REFLECTOR; ELECTRICAL POTENTIAL CONTROL MEANS OPERATED BY MOVEMENT OF SAID REFLECTOR; SHIFT MEANS PRODUCING A DISPLACEMENT OF SAID DISPLAY ON SAID SCREEN; AND MEANS FOR APPLYING SAID CONTROLLED POTENTIAL TO SAID SHIFT MEANS, THEREBY PRODUCING A DISPLACEMENT OF SAID IMAGE WHEN SAID REFLECTOR IS MOVED SUCH AS TO COMPENSATE FOR SAID MOVEMENT OF SAID REFLECTOR.
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) | 1969-09-19 | 1970-03-21 | 1970-09-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-09-19 | 1974-03-21 | 1974-09-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-09-19 | 1978-03-21 | 1978-09-20 | $7700.00 | Window Closed / Lapsed |