US3090887A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Background improvement circuit for direct view storage tube radar indicator
Assignee: Collins Radio Co
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Filing: 1960-01-15
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Granted: 1963-05-21
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Expires: 1980-01-15
Abstract
No abstract record available.
Inventors
- 👤 Paul M Cunningham
- 👤 Kenneth L Scott
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 14:10
CPC Classifications
G; G01; G01S; G01S7/00; G01S7/02; G01S7/28; G01S7/2806; H; H04; H04N; H04N5/00; H04N5/66; H04N5/68
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
129 words
IN A CIRCUIT FOR VISUALLY DISPLAYING A REPRESENTATION OF A RECEIVED SIGNAL COMPRISING A DIRECT-VIEW STORAGE TUBE HAVING A VIEWING SCREEN, MEANS INCLUDING A WRITING GUN FOR PRODUCING AND IMPELLING A PENCIL-LIKE ELECTRON BEAM TOWARDS SAID VIEWING SCREEN, MEANS INCLUDING A FLOODING GUN FOR PRODUCING AND IMPELLING A FLOOD OF ELECTRONS CONTINUOUSLY AND UNIFORMLY OVER THE ENTIRE VIEWING SCREEN, A CONSTANT HIGH VALUE DIRECT VOLTAGE SOURCE MEANS FOR SUPPLYING A DIRECT VOLTAGE TO SAID VIEWING SCREEN STORAGE MESH MEANS INTERPOSED BETWEEN SAID GUNS AND SAID VIEWING SCREEN, COLLECTOR MESH MEANS INTERPOSED BETWEEN SAID GUNS AND SAID STORAGE MESH MEANS, MEANS FOR GENERATING A SWEEP SIGNAL FOR DEFLECTING SAID ELECTRON BEAM, AN ERASE PULSE GENERATING MEANS RESPONSIVE TO THE OPERATION OF THE SWEEP SIGNAL GENERATING MEANS FOR PRODUCING AN ERASE
Claim 2
Dependent Claim
129 words
IN A CIRCUIT FOR VISUALLY DISPLAYING A REPRESENTATION OF A RECEIVED SIGNAL COMPRISING A DIRECT-VIEW STORAGE TUBE HAVING A VIEWING SCREEN, MEANS INCLUDING A WRITING GUN FOR PRODUCING AND IMPELLING A PENCIL-LIKE ELECTRON BEAM TOWARDS SAID VIEWING SCREEN, MEANS INCLUDING A FLOODING GUN FOR PRODUCING AND IMPELLING A FLOOD OF ELECTRONS CONTINUOUSLY AND UNIFORMLY OVER THE ENTIRE VIEWING SCREEN, A CONSTANT HIGH VALUE DIRECT VOLTAGE SOURCE MEANS FOR SUPPLYING A DIRECT VOLTAGE TO SAID VIEWING SCREEN STORAGE MESH MEANS INTERPOSED BETWEEN SAID GUNS AND SAID VIEWING SCREEN, COLLECTOR MESH MEANS INTERPOSED BETWEEN SAID GUNS AND SAID STORAGE MESH MEANS, MEANS FOR GENERATING A SWEEP SIGNAL FOR DEFLECTING SAID ELECTRON BEAM, AN ERASE PULSE GENERATING MEANS RESPONSIVE TO THE OPERATION OF THE SWEEP SIGNAL GENERATING MEANS FOR PRODUCING AN ERASE
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) | 1966-05-20 | 1966-11-19 | 1967-05-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-05-20 | 1970-11-19 | 1971-05-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-05-20 | 1974-11-19 | 1975-05-21 | $7700.00 | Window Closed / Lapsed |