US3379529A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Photographic inhibitor-releasing developers
Assignee: Eastman Kodak Co
•
Filing: 1963-02-28
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Granted: 1968-04-23
•
Expires: 1983-02-28
Abstract
No abstract record available.
Inventors
- 👤 Porter Ralph Frederick
- 👤 Judith A Schwan
- 👤 Jr John W Gates
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 22:43
CPC Classifications
C; C07; C07D; C07D257/00; C07D257/02; C07D257/04; G; G03; G03C; G03C5/00; G03C5/26; G03C5/29; G03C5/30; G03C5/3021; G03C8/00; G03C8/02; G03C8/08; Y; Y10; Y10S; Y10S430/00; Y10S430/156; Y10S430/158
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
33 words
A PHOTOGRAPHIC ELEMENT COMPRISING A SUPPORT AND A PHOTOGRAPHIC SILVER HALIDE EMULSION LAYER, AND INTEGRAL WITH SAID PHOTOGRAPHIC ELEMENT A WATER-PERMEABLE HYDROPHILIC COLLOID LAYER CONTAINING A COMPOUND REPRESENTED BY THE FOLLOWING GENERAL FORMULA:
Claim 2
Dependent Claim
33 words
A PHOTOGRAPHIC ELEMENT COMPRISING A SUPPORT AND A PHOTOGRAPHIC SILVER HALIDE EMULSION LAYER, AND INTEGRAL WITH SAID PHOTOGRAPHIC ELEMENT A WATER-PERMEABLE HYDROPHILIC COLLOID LAYER CONTAINING A COMPOUND REPRESENTED BY THE FOLLOWING GENERAL FORMULA:
Claim 3
Dependent Claim
35 words
A PROCESS FOR FORMING A PHOTORESIST COMPRISING EXPOSING A PHOTOGRAPHIC SILVER HALIDE EMULSION LAYER CONTAINING A TANNING SILVER HALIDE DEVELOPER AND A COMPOUND SELECTED FROM THE CLASS OF COMPOUNDS REPRESENTED BY THE FOLLOWING GENERAL FORMULA:
Claim 4
Dependent Claim
35 words
A PROCESS FOR FORMING A PHOTORESIST COMPRISING EXPOSING A PHOTOGRAPHIC SILVER HALIDE EMULSION LAYER CONTAINING A TANNING SILVER HALIDE DEVELOPER AND A COMPOUND SELECTED FROM THE CLASS OF COMPOUNDS REPRESENTED BY THE FOLLOWING GENERAL FORMULA:
References Cited (Backward Citations)
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Cited
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1971-04-23 | 1971-10-23 | 1972-04-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-04-23 | 1975-10-23 | 1976-04-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-04-23 | 1979-10-23 | 1980-04-23 | $7700.00 | Window Closed / Lapsed |