US2619419A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Production of color photographic images
Assignee: Gevaert Photo Producten NV
•
Filing: 1948-12-22
•
Granted: 1952-11-25
•
Expires: 1968-12-22
Abstract
No abstract record available.
Inventors
- 👤 Jacob J Jennen
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 07:37
CPC Classifications
G; G03; G03C; G03C7/00; G03C7/30; G03C7/32; G03C7/36; G03C7/38; G03C7/384; F; F27; F27D; F27D3/00; F27D3/12; F27D3/123
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
36 words
PROCESS OF COLOR PHOTOGRAPHY WHICH COMPRISES DEVELOPING A REDUCIBLE SILVER SALT IMAGE IN A PHOTOGRAPHIC ELEMENT BY MEANS OF A PRIMARY AROMATIC AMINO DEVELOPING AGENT IN THE PRESENCE OF A COLOR COUPLER HAVING THE FOLLOWING FORMULA:
Claim 2
Dependent Claim
36 words
PROCESS OF COLOR PHOTOGRAPHY WHICH COMPRISES DEVELOPING A REDUCIBLE SILVER SALT IMAGE IN A PHOTOGRAPHIC ELEMENT BY MEANS OF A PRIMARY AROMATIC AMINO DEVELOPING AGENT IN THE PRESENCE OF A COLOR COUPLER HAVING THE FOLLOWING FORMULA:
References Cited (Backward Citations)
US2376380A
Cited
US2179239A
Cited
US2213986A
Cited
US2294909A
Cited
US2311082A
Cited
US2343704A
Cited
US2343703A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1955-11-25 | 1956-05-26 | 1956-11-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1959-11-25 | 1960-05-26 | 1960-11-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1963-11-25 | 1964-05-26 | 1964-11-25 | $7700.00 | Window Closed / Lapsed |