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US3433638A
Expired / Lapsed
US
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Photographic light-sensitive films
Assignee: Fujifilm Holdings Corp
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Filing: 1966-04-20
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Granted: 1969-03-18
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Expires: 1986-04-20
Abstract
No abstract record available.
Inventors
- 👤 Reiichi Ohi
- 👤 Teppei Ikeda
- 👤 Choji Hibino
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 17:51
CPC Classifications
G; G03; G03C; G03C1/00; G03C1/76; G03C1/825; Y; Y10; Y10S; Y10S430/00; Y10S430/155
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
65 words
A PHOTOGRAPHIC LIGHT-SENSITIVE FILM COMPRISING A SUPPORT HAVING THEREON AT LEAST ONE PHOTOGRAPHIC LIGHTSENSITIVE EMULSION LAYER AND AN ANTI-HALATION LAYER COMPOSED OF AN ALKALI-SOLUBLE RESIN AND A MEMBER SELECTED FROM THE GROUP CONSISTING OF CARBON BLACK AND AN ANTIHALATION DYE ON THE SURFACE OF THE SUPPORT OPPOSITE TO THE EMULSION SIDE, SAID ANTI-HALATION LAYER HAVING INCORPORATED THEREIN AN N-ALKYL BEHENAMIDE SHOWN BY THE FOLLOWING FORMULA:
Claim 2
Dependent Claim
65 words
A PHOTOGRAPHIC LIGHT-SENSITIVE FILM COMPRISING A SUPPORT HAVING THEREON AT LEAST ONE PHOTOGRAPHIC LIGHTSENSITIVE EMULSION LAYER AND AN ANTI-HALATION LAYER COMPOSED OF AN ALKALI-SOLUBLE RESIN AND A MEMBER SELECTED FROM THE GROUP CONSISTING OF CARBON BLACK AND AN ANTIHALATION DYE ON THE SURFACE OF THE SUPPORT OPPOSITE TO THE EMULSION SIDE, SAID ANTI-HALATION LAYER HAVING INCORPORATED THEREIN AN N-ALKYL BEHENAMIDE SHOWN BY THE FOLLOWING FORMULA:
References Cited (Backward Citations)
US2732305A
Cited
US3206311A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1972-03-17 | 1972-09-16 | 1973-03-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-03-17 | 1976-09-16 | 1977-03-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-03-17 | 1980-09-16 | 1981-03-18 | $7700.00 | Window Closed / Lapsed |