US3790376A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Electron beam recording material
Assignee: Fujifilm Holdings Corp
•
Filing: 1971-09-03
•
Granted: 1974-02-05
•
Expires: 1991-09-03
Abstract
Abstract WHEREIN R is a phenyl or naphthyl group which may be substituted by a hydrogen atom, a halogen atom or an alkyl or alkoxyl group having 1 to 4 carbon atoms. A highly sensitive electron beam recording material is obtained by adding to the system of N-vinylcarbazole and tetrabromomethane in a hydrophilic binder an additive of a leucomethylene blue having the formula
Inventors
- 👤 M Hashiue
- 👤 H Yamashita
- 👤 N Sekikawa
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 07:18
CPC Classifications
G; G03; G03F; G03F7/00; G03F7/004; G03F7/027; G03F7/028; G03F7/029; G03F7/0295; G03C; G03C1/00; G03C1/72; G03C1/73; G03C1/732; Y; Y10; Y10S; Y10S430/00; Y10S430/143
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
37 words
An electron beam recording material as claimed in claim 1 wherein said hydrophilic film-forming polymer binder is selected from the group consisting of gelatin, polyvinyl alcohol, carboxymethyl cellulose, starch, casein, gum arabic, hydroxyethyl cellulose and polyvinyl pyrrolidone.
Claim 2
Dependent Claim
31 words
An electron beam recording material as claimed in claim 1 where said support is selected from the group consisting of baryta paper, resin-coated paper, cellulose acetate film and polyethylene terephthalate film.
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) | 1977-02-04 | 1977-08-06 | 1978-02-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-02-04 | 1981-08-06 | 1982-02-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-02-04 | 1985-08-06 | 1986-02-05 | $7700.00 | Window Closed / Lapsed |