US3374094A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Lithographic plate made from an n-vinyl-amine and an organic halogen compound dispersed in an hydrophilic colloid
Assignee: HECULES INCORPORATED A CORP OF DE
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Filing: 1965-07-19
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Granted: 1968-03-19
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Expires: 1985-07-19
Abstract
No abstract record available.
Inventors
- 👤 Wainer Eugene
- 👤 Jr Harry L Fichter
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 21:39
CPC Classifications
G; G03; G03F; G03F7/00; G03F7/004; G03F7/027; G03F7/028; G03F7/029; Y; Y10; Y10S; Y10S430/00; Y10S430/1053; Y10S430/1055; Y10S430/114; Y10S430/126
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
113 words
A METHOD OF PREPARING A PHOTOLIGHOGRAPHIC PLATE WHICH COMPRISES: (1) APPLYING A LIQUID COMPOSITION TO A SUPPORT UNDER DARKROOM CONDITIONS, SAID COMPOSITION COMPRISING AT LEAST ONE OF EACH OF THE FOLLOWING CONSTITUENTS: (A) AN N-VINYLAMINE (B)AN ORGANIC HALOGEN COMPOUND IN WHICH AT LEAST THREE HALOGEN ATOMS ARE LINKED TO A SINGEL CARBON ATOM, EACH OF SAID HALOGEN ATOMS BEING SELECTED FROM THE GROUP CONSISTING OF BR AND CL (C) A TRIARYL COMPOUND OF AN ELEMENT SELECTED FROM THE GROUP CONSISTING OF P, BI, SB AND AS (D) A HYDROPHILIC FILM FORMING BINDER (E) A VOLATILE LIQUID FOR SAID CONSTITUTENS AND (2)DRYING THE RESULTING COATED ARTICLE UNDER DARKROOM CONDITIONS TO PRODUCE A PHOTOSENSITIVE PLATE.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1971-03-19 | 1971-09-18 | 1972-03-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-03-19 | 1975-09-18 | 1976-03-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-03-19 | 1979-09-18 | 1980-03-19 | $7700.00 | Window Closed / Lapsed |