US3347672A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Photographic products, processes and compositions
Assignee: Polaroid Corp
•
Filing: 1963-12-19
•
Granted: 1967-10-17
•
Expires: 1983-12-19
Abstract
No abstract record available.
Inventors
- 👤 John F Downey
- 👤 Myron S Simon
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 07:30
CPC Classifications
G; G03; G03C; G03C8/00; G03C8/02; G03C8/08; G03C8/10; G03C8/12; G03C8/14; G03C8/16; G03C8/18; C; C09; C09B; C09B1/00; C09B1/50; C09B1/51; C09B1/515; C09B1/5155
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
32 words
IN A PROCESS OF FORMING A PHOTOGRAPHIC IMAGE IN COLOR, THE STEPS WHICH COMPRISE CONTACTING AN EXPOSED SILVER HALIDE EMULSION WITH AN AQUEOUS SOLUTION CONTAINING AN ANTHRAQUINONE DYE DEVELOPER OF THE FORMULA:
Claim 2
Dependent Claim
32 words
IN A PROCESS OF FORMING A PHOTOGRAPHIC IMAGE IN COLOR, THE STEPS WHICH COMPRISE CONTACTING AN EXPOSED SILVER HALIDE EMULSION WITH AN AQUEOUS SOLUTION CONTAINING AN ANTHRAQUINONE DYE DEVELOPER OF THE FORMULA:
References Cited (Backward Citations)
US3255001A
Cited
US2983606A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1970-10-16 | 1971-04-17 | 1971-10-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-10-16 | 1975-04-17 | 1975-10-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-10-16 | 1979-04-17 | 1979-10-17 | $7700.00 | Window Closed / Lapsed |