US2673801A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Production of color photographic images
Assignee: Gevaert Photo Producten NV
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Filing: 1949-11-22
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Granted: 1954-03-30
•
Expires: 1969-11-22
Abstract
No abstract record available.
Inventors
- 👤 Jennen Jacob Joseph
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 09:01
CPC Classifications
G; G03; G03C; G03C7/00; G03C7/30; G03C7/32; G03C7/3231
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
28 words
A PHOTOGRAPHIC MATERIAL COMPRISING A SILVER HALIDE EMULSION LAYER AND A COLLOID LAYER, CONTAINING A COLOR COUPLER HAVING A FORMULA SELECTED FROM THE GROUP CONSISTING OF FORMULA I:
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1957-03-29 | 1957-09-28 | 1958-03-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1961-03-29 | 1961-09-28 | 1962-03-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1965-03-29 | 1965-09-28 | 1966-03-30 | $7700.00 | Window Closed / Lapsed |