US3667951A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Photographic stabilizing baths inhibited against corrosion with polyalkylene glycols
Assignee: Eastman Kodak Co
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Filing: 1969-03-03
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Granted: 1972-06-06
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Expires: 1989-03-03
Abstract
Abstract STABILIZING BATHS WHICH ARE UTILIZED IN RAPID ACCESS PROCESSING OF PHOTOGRAPHIC ELEMENTS AND WHICH COMPRISE A THIOCYANATE STABILIZING AGENT AND AN ALUMINUM SALT WHICH FUNCTIONS AS A HARDENING AGENT FOR PHOTOGRAPHIC EMULSION ARE RENDERED LESS CORROSIVE TO PROCESSING EQUIPMENT BY INCORPORATION THEREIN OF A MINOR AMOUNT OF A POLYALKYLENE GLYCOL.
Inventors
- 👤 Henry J Fassbender
- 👤 Nelson S Case
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 17:04
CPC Classifications
G; G03; G03C; G03C5/00; G03C5/26; G03C5/38; G03C5/39; Y; Y10; Y10S; Y10S430/00; Y10S430/164
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) | 1975-06-06 | 1975-12-06 | 1976-06-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-06-06 | 1979-12-06 | 1980-06-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-06-06 | 1983-12-06 | 1984-06-06 | $7700.00 | Window Closed / Lapsed |