US3099820A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Optical storage system
Assignee: AT&T Inc
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Filing: 1959-03-31
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Granted: 1963-07-30
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Expires: 1979-03-31
Abstract
No abstract record available.
Inventors
- 👤 Raymond W Ketchledge
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 22:36
CPC Classifications
G; G11; G11C; G11C13/00; G11C13/04; G11C13/048
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
145 words
A BINARY INFORMATION STORAGE SYSTEM COMPRISING AN ELECTRON DISCHARGE DEVICE INCLUDING A TRICOLOR LUMINESCENT SCREEN, MEANS FOR PROFECTING AN ELECTRON BEAM AGAINST SAID SCREEN, MEANS FOR DEFLECTING SAID BEAM AND MEANS FOR CONTROLLING SAID DEFLECTED BEAM TO PRODUCE A SPOT OF LIGHT ON THE AREA OF INCIDENCE IN A SELECTED COLOR, AN INFORMATION STORAGE SLIDE HAVING BINARY INFORMATION STORED ON DISCRETE AREAS THEREOF, SAID DISCRETE AREAS OF SAID SLIDE BEING ARRANGED OT ABSORB LIGHT OF CERTAIN COLORS AND TO TRANSMIT THERETHROUGH LIGHT OF ALL OTHER COLORS, A POSITIONING SLIDE, MEANS FOR FOCUSING LIGHT ON SAID SLIDES FROM SAID SELECTED COLOR SPOT ON SAID SCREEN, LIGHT RESPONSIVE DEVICES FOR GENERATING ELECTRICAL MANIFESTATIONS OF LIGHT DIRECTED THERETO, MEANS FOR FOCUSING LIGHT ON SAID DEVICES FROM SAID SCREEN THROUGH SAID SLIDES, AND MEANS INTERCONNECTING SAID CONTROL MEANS AND SAID LIGHT RESPONSIVE DEVICE RECEIVING LIGHT THROUGH SAID POSITIONING SLIDE.
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) | 1966-07-29 | 1967-01-28 | 1967-07-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-07-29 | 1971-01-28 | 1971-07-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-07-29 | 1975-01-28 | 1975-07-30 | $7700.00 | Window Closed / Lapsed |