US3782944A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Process for the polymerization of vinyl compound
Assignee: Fujifilm Holdings Corp
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Filing: 1972-10-10
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Granted: 1974-01-01
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Expires: 1992-10-10
Abstract
Abstract A PROCESS FOR THE SELECTIVE POLYMERIZATION OF A POLYMERIZABLE VINYL COMPOUND WHICH COMPRISES EXPOSISNG A GELATINO SILVER HALIDE PHOTOGRAPHIC EMULSION LAYER CONNTAINING SILVER HALIDE PRTICLES TO ELECTROMAGNETIC WAVES OR PARTICLE RAYS TO GIVE CENTERS OF DEVELOPMENT TO SAID SILVER HALIDE PARTICLES CAUSING THE SILVER HALIDE PHOTOGRAPHIC EMULSION LAYER TO REACT, IN THE PRESENCE OF AT LEAST ONE VINYL COMPOUND, WITH A NAPTHOL DERIVATIVE HAVING TWO HYDROXYL GROUPS OR ONE HYDROXYL GROUP AND ONE AMINO GROUP AT THE 1,6-POSITIONS, 1,8-POSITIONS, 2,5-POSITIONS OR 2,7-POSITIONS ON THE NAPTHALENE NUCLEI.
Inventors
- 👤 Y Hayakawa
- 👤 M Satomura
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 08:46
CPC Classifications
G; G03; G03F; G03F7/00; G03F7/004; G03F7/027; G03F7/028; G03F7/0285
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1976-12-31 | 1977-07-02 | 1978-01-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-12-31 | 1981-07-02 | 1982-01-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-12-31 | 1985-07-02 | 1986-01-01 | $7700.00 | Window Closed / Lapsed |