US3022172A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Process for the production of photographic materials
Assignee: Fujifilm Holdings Corp
•
Filing: 1959-05-06
•
Granted: 1962-02-20
•
Expires: 1979-05-06
Abstract
No abstract record available.
Inventors
- 👤 Ohba Seiichi
- 👤 Yonezawa Teruhiko
- 👤 Kumai Akira
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 16:09
CPC Classifications
G; G03; G03C; G03C1/00; G03C1/005; G03C1/04; G03C1/053; C; C08; C08L; C08L25/00; C08L25/18
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
24 words
A PHOTOGRAPHIC SILVER HALIDE GELATIN EMULSION CONTAINING A LINEAR HOMOPOLYMER SELECTED FORM THE GROUP OF HOMOPOLUMERS CONSISTING OF RECURRING UNITS REPRESENTED BY THE FORMULAE:
Claim 2
Dependent Claim
24 words
A PHOTOGRAPHIC SILVER HALIDE GELATIN EMULSION CONTAINING A LINEAR HOMOPOLYMER SELECTED FORM THE GROUP OF HOMOPOLUMERS CONSISTING OF RECURRING UNITS REPRESENTED BY THE FORMULAE:
References Cited (Backward Citations)
DE912778C
Cited
US2759816A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1965-02-19 | 1965-08-21 | 1966-02-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-02-19 | 1969-08-21 | 1970-02-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-02-19 | 1973-08-21 | 1974-02-20 | $7700.00 | Window Closed / Lapsed |