US3794496A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Photographic processes and imaging media therefor
Assignee: Northrop Grumman Guidance and Electronics Co Inc
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Filing: 1972-05-26
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Granted: 1974-02-26
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Expires: 1992-05-26
Abstract
Abstract AN IMAGING MEDIUM COMPRISES A PHOTOSENSITIVE LAYER COMPRISING A RADIATION-SENSITIVE SILVER HALIDE SALT WHICH UPON EXPOSURE TO AN IMAGE PATTERN OF ACTIVATING RADIATION PRODUCES A CATALYST CAPABLE OF ACCELERATING THE DECOMPOSITION OF A DECOMPOSABLE METAL COMPOUND AND AN IMAGE-FORMING MATERIAL COMPRISING THE DECOMPOSABLE METAL COMPOUND. THE EXPOSED PHOTOSENSITIVE LAYER MAY BE DEVELOPED BY HEATING, BY EXPOSURE TO ELECTROMAGNETIC RADIATION OR BY MERELY PROLONGING THE INITIAL EXPOSURE TO AN IMAGE PATTERN OF ACTIVATING RADIATION. EXAMPLES OF SUITABLE IMAGE FORMING MATERIALS ARE METAL COMPLEXES SUCH AS SILVER EDTA.
Inventors
- 👤 J Manhardt
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 14:47
CPC Classifications
G; G03; G03C; G03C1/00; G03C1/494; G03C1/498
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) | 1977-02-25 | 1977-08-27 | 1978-02-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-02-25 | 1981-08-27 | 1982-02-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-02-25 | 1985-08-27 | 1986-02-26 | $7700.00 | Window Closed / Lapsed |