Patent US3726769A successfully refreshed from Google Patents.
US3726769A
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US
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Dry,instant access electrosensitive recording elements and methods
Assignee: Eastman Kodak Co
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Filing: 1971-12-20
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Granted: 1973-04-10
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Expires: 1991-12-20
Abstract
Abstract VISIBLE IMAGES CAN BE PRODUCED DIRECTLY IN ELEMENTS CONTAINING A LAYER OF CRYSTALLINE POLYACETYLENIC MATERIAL BY APPLYING AN ELECTRICAL POTENTIAL BETWEEN AN ELECTRODE CLOSELY SPACED TO SAID LAYER AND A CONDUCTING BACKING MEMBER ON THE OPPOSITE SIDE OF THE LAYER.
Inventors
- 👤 P Borsenberger
- 👤 A Guevara
- 👤 R Stahr
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 09:24
CPC Classifications
B; B41; B41M; B41M5/00; B41M5/20
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1976-04-09 | 1976-10-09 | 1977-04-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-04-09 | 1980-10-09 | 1981-04-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-04-09 | 1984-10-09 | 1985-04-10 | $7700.00 | Window Closed / Lapsed |