US3080230A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Photographic stratum transfer process and element therefor
Assignee: Agfa Gevaert NV
•
Filing: 1957-01-29
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Granted: 1963-03-05
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Expires: 1977-01-29
Abstract
No abstract record available.
Inventors
- 👤 Haydn Hildegard
- 👤 Konig Anita Von
- 👤 Weyde Edith
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 18:26
CPC Classifications
G; G03; G03C; G03C8/00; G03C8/40; G03C8/4006; G03C5/00; G03C5/26; G03C5/29; G03C5/315; Y; Y10; Y10S; Y10S430/00; Y10S430/166
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
106 words
A PROCESS FOR THE PRODUCTION OF NON-LATERALLY-REVERSED POSITIVE PHOTOGRAPHIC IMAGES WITHOUT THE USE OF BODIES OF PROCESSING LIQUID, WHICH PROCESS COMPRISES EXPOSING TO AN ORIGINAL IMAGE A LIGHT-SENSITIVE SILVER HALIDE EMULSION LAYER CONTAINING A TANNING DEVELOPER THAT CAUSES THE EMULSION TO BE TANNED IN ITS PHOTOGRAPHICALLY EXPOSED AREAS WHEN DEVELOPING ACTION TAKES PLACE, AND ALSO CONTAINING, IN AN AMOUNT BETWEEN 0.2 AND 2 PARTS BY WEIGHT PER PART BY WEIGHT OF THE DEVELOPER, A BISULPHITE OF A COMPOUND OF THE GROUP CONSISTING OF ALDEHYDES AND KETONES THAT HAVE A BOILING POINT ABOVE 80* C. AND THAT DO NOT HARDEN THE EMULSION LAYER, PRESSING THE EXPOSED EMUL-
References Cited (Backward Citations)
US742405A
Cited
US1954325A
Cited
GB392938A
Cited
GB399269A
Cited
GB427962A
Cited
US2596756A
Cited
US2675313A
Cited
US2716059A
Cited
US2747999A
Cited
US2835575A
Cited
US2865745A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1966-03-04 | 1966-09-03 | 1967-03-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-03-04 | 1970-09-03 | 1971-03-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-03-04 | 1974-09-03 | 1975-03-05 | $7700.00 | Window Closed / Lapsed |