US3136909A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Storage device having a photo-conductive target
Assignee: RCA Corp
•
Filing: 1959-07-10
•
Granted: 1964-06-09
•
Expires: 1979-07-10
Abstract
No abstract record available.
Inventors
- 👤 Cope Appleton Danforth
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 18:44
CPC Classifications
H; H01; H01J; H01J29/00; H01J29/02; H01J29/10; H01J29/36; H01J29/39
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
44 words
A TARGET FOR A STORAGE DEVICE COMPRISING A LAYER OF INSULATING MATERIAL IN PHYSICAL CONTACT WITH A LAYER OF PHOTOCONDUCTIVE MATERIAL, SAID LAYERS OF MATERIAL HAVING A RESISTIVITY OF AT LEAST 10**15 OHM-CM., AND ELECTRICAL MEANS FOR SCANNING AN EXPOSED SURFACE OF SAID INSULATOR.
Claim 2
Dependent Claim
44 words
A TARGET FOR A STORAGE DEVICE COMPRISING A LAYER OF INSULATING MATERIAL IN PHYSICAL CONTACT WITH A LAYER OF PHOTOCONDUCTIVE MATERIAL, SAID LAYERS OF MATERIAL HAVING A RESISTIVITY OF AT LEAST 10**15 OHM-CM., AND ELECTRICAL MEANS FOR SCANNING AN EXPOSED SURFACE OF SAID INSULATOR.
References Cited (Backward Citations)
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1967-06-09 | 1967-12-09 | 1968-06-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-06-09 | 1971-12-09 | 1972-06-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-06-09 | 1975-12-09 | 1976-06-09 | $7700.00 | Window Closed / Lapsed |