US3561962A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of image reproduction by photo-polymerization and blushing
Assignee: Xerox Corp
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Filing: 1966-09-01
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Granted: 1971-02-09
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Expires: 1986-09-01
Abstract
Abstract THE LATENT IMAGE ON A PHOTOHARDENABLE MATERIAL WHICH HAS BEEN EXPOSED TO A LIGHT AND SHADOW PATTERN OF ACTINIC LIGHT IS RENDERED VISIBLE BY CONTACTING THE MATERIAL WITH A LIQUID DEVELOPER WHICH IS A NONSOLVENT FOR THE PHOTOHARDENABLE MATERIAL AND WHICH IS SELECTIVELY ABSORBED IN THE UNEXPOSED NONPHOTOHARDENED PORTIONS OF THE MATERIAL TO CREATE TWO PHASES THEREIN; ONE DISPERSED IN THE OTHER TO PRODUCED A LIGHT SCATTERING VISIBLE LIGHTENED EFFECT IN UNEXPOSED, UNPHOTOHARDENED PORTIONS.
Inventors
- 👤 Joan R Ewing
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 20:18
CPC Classifications
G; G03; G03F; G03F7/00; G03F7/26
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) | 1974-02-08 | 1974-08-10 | 1975-02-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-02-08 | 1978-08-10 | 1979-02-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-02-08 | 1982-08-10 | 1983-02-09 | $7700.00 | Window Closed / Lapsed |