US3829317A
Expired / Lapsed
US
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Physical development process utilizing viscous sensitizing metal solution
Assignee: Northrop Grumman Guidance and Electronics Co Inc
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Filing: 1972-08-03
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Granted: 1974-08-13
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Expires: 1992-08-03
Abstract
Abstract A NEW PROCESS IS DESCRIBED FOR PRODUCING IMPROVED METAL IMAGES IN PHOTO-EXPOSED MEDIA COMPRISING A PHOTOCONDUCTOR AS THE PHOTOSENSITIVE COMPONENT INCLUDING THE STEP OF CONTACTING THE MEDIUM WITH A VISCOUS REAGENT COMPRISING A SENSITIZING METAL ION, E.G. SILVER ION.
Inventors
- 👤 L Case
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 23:07
CPC Classifications
G; G03; G03G; G03G17/00; G03G17/02; G03F; G03F7/00; G03F7/004; G03F7/06; G03G13/00; G03G13/26; G03G13/28
Claims Analysis
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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) | 1977-08-12 | 1978-02-11 | 1978-08-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-08-12 | 1982-02-11 | 1982-08-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-08-12 | 1986-02-11 | 1986-08-13 | $7700.00 | Window Closed / Lapsed |