US3440620A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Electro-optical memory
Assignee: RCA Corp
•
Filing: 1966-01-10
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Granted: 1969-04-22
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Expires: 1986-01-10
Abstract
No abstract record available.
Inventors
- 👤 Larry J French
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-22 22:01
CPC Classifications
G; G02; G02F; G02F1/00; G02F1/01; G02F1/13; G02F1/137; G02F1/13725; G02F1/133; G02F1/135; G11; G11C; G11C13/00; G11C13/04; G11C13/047
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
121 words
AN OPTICAL MEMORY COMPRISING A MATRIX OF SELECTIVELY ENERGIZABLE RADIATION PRODUCING DEVICES, MEANS OPERATIVE TO FORM A PLURALITY OF SEPARATE IMAGES OF SAID MATRIX IN A PREDETERMINED PLANE, INFORMATION STORAGE MEANS COMPRISING A PLURALITY OF STORAGE CELLS ARRANGED IN A MATRIX, EACH OF SAID CELLS HAVING PRESELECTED INCREMENTAL STORAGE AREAS ARRANGED TO BE TRANSPARENT AT ALL TIMES TO SAID RADIATION, SAID STORAGE CELLS BEING OPERATIVE UNDER THE INFLUENCE OF AN APPLIED FIELD TO PROVIDE AN OPAQUE CONDITION TO SAID RADIATION IN THE AREAS OUTSIDE OF SAID PRESELECTED AREAS, ENERGIZING MEANS ARRANGED TO SELECTIVELY APPLY SAID FIELD TO SAID STORAGE CELLS AND SENSING MEANS OPERATIVE TO PROVIDE SEPARATE OUTPUT SIGNALS FOR EACH OF SAID STORAGE CELLS INDICATIVE OF SAID RADIATION PASSING THERETHROUGH.
Claim 2
Dependent Claim
121 words
AN OPTICAL MEMORY COMPRISING A MATRIX OF SELECTIVELY ENERGIZABLE RADIATION PRODUCING DEVICES, MEANS OPERATIVE TO FORM A PLURALITY OF SEPARATE IMAGES OF SAID MATRIX IN A PREDETERMINED PLANE, INFORMATION STORAGE MEANS COMPRISING A PLURALITY OF STORAGE CELLS ARRANGED IN A MATRIX, EACH OF SAID CELLS HAVING PRESELECTED INCREMENTAL STORAGE AREAS ARRANGED TO BE TRANSPARENT AT ALL TIMES TO SAID RADIATION, SAID STORAGE CELLS BEING OPERATIVE UNDER THE INFLUENCE OF AN APPLIED FIELD TO PROVIDE AN OPAQUE CONDITION TO SAID RADIATION IN THE AREAS OUTSIDE OF SAID PRESELECTED AREAS, ENERGIZING MEANS ARRANGED TO SELECTIVELY APPLY SAID FIELD TO SAID STORAGE CELLS AND SENSING MEANS OPERATIVE TO PROVIDE SEPARATE OUTPUT SIGNALS FOR EACH OF SAID STORAGE CELLS INDICATIVE OF SAID RADIATION PASSING THERETHROUGH.
References Cited (Backward Citations)
US3248552A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1972-04-21 | 1972-10-21 | 1973-04-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-04-21 | 1976-10-21 | 1977-04-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-04-21 | 1980-10-21 | 1981-04-22 | $7700.00 | Window Closed / Lapsed |