US3281601A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Cathode ray tube device for tracking light spot on tube face
Assignee: Northrop Grumman Corp
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Filing: 1963-10-11
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Granted: 1966-10-25
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Expires: 1983-10-11
Abstract
No abstract record available.
Inventors
- 👤 Eugene H Sheftelman
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 09:45
CPC Classifications
H; H01; H01J; H01J31/00; H01J31/08; H01J31/26; H01J31/28
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
89 words
AN ELECTRONIC LIGHT INTEGRATOR COMPRISING AT LEAST ONE ELECTRICAL CONDUCTOR, MEANS TO SELECTIVELY DIRECT A STREAM OF PRIMARY ELECTRONS OF A CONTROLLED ALTERNATING VELOCITY ON THE ELECTRICAL CONDUCTOR TO SELECTIVELY CHARGE THE ELECTRICAL CONDUCTOR TO ONE OF TWO DIFFERENT VALUES, THE ELECTRICAL CONDUCTOR EMITTING SECONDARY ELECTRONS IN RESPONSE TO THE PRIMARY ELECTRON STREAM, MEANS INCLUDING A PHOTOSENSITIVE SHEET BETWEEN THE ELECTRICAL CONDUCTOR AND A LIGHT SOURCE FOR VARYING THE CHARGE OF THE ELECTRICAL CONDUCTOR IN RESPONSE TO LIGHT, AND AN ELECTRICALLY CONDUCTIVE SURFACE ADJACENT THE ELECTRICAL CONDUCTOR TO COLLECT
Claim 2
Dependent Claim
89 words
AN ELECTRONIC LIGHT INTEGRATOR COMPRISING AT LEAST ONE ELECTRICAL CONDUCTOR, MEANS TO SELECTIVELY DIRECT A STREAM OF PRIMARY ELECTRONS OF A CONTROLLED ALTERNATING VELOCITY ON THE ELECTRICAL CONDUCTOR TO SELECTIVELY CHARGE THE ELECTRICAL CONDUCTOR TO ONE OF TWO DIFFERENT VALUES, THE ELECTRICAL CONDUCTOR EMITTING SECONDARY ELECTRONS IN RESPONSE TO THE PRIMARY ELECTRON STREAM, MEANS INCLUDING A PHOTOSENSITIVE SHEET BETWEEN THE ELECTRICAL CONDUCTOR AND A LIGHT SOURCE FOR VARYING THE CHARGE OF THE ELECTRICAL CONDUCTOR IN RESPONSE TO LIGHT, AND AN ELECTRICALLY CONDUCTIVE SURFACE ADJACENT THE ELECTRICAL CONDUCTOR TO COLLECT
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) | 1969-10-24 | 1970-04-25 | 1970-10-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-10-24 | 1974-04-25 | 1974-10-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-10-24 | 1978-04-25 | 1978-10-25 | $7700.00 | Window Closed / Lapsed |