US3615569A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Image stabilization in diazosulfonate photoreproduction
Assignee: Plastic Coating Corp
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Filing: 1969-11-28
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Granted: 1971-10-26
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Expires: 1989-11-28
Abstract
Abstract Inclusion of an amine salt of an aromatic carboxylic acid in a reversal diazosulfonate photosensitive composition prevents dye color-shift and background coloration.
Inventors
- 👤 Robert Charles Desjarlais
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 22:45
CPC Classifications
G; G03; G03C; G03C1/00; G03C1/52; G03C1/61
Claims Analysis
Total Claims: 5
Claim 1
Independent Claim
20 words
The formulation according to claim 1 wherein, in the compound corresponding to the formula given, one R group is cyclohexyl.
Claim 2
Dependent Claim
21 words
The formulation according to claim 2 wherein, in the compound corresponding to the formula given, the other R group is isopropyl.
Claim 3
Dependent Claim
28 words
A reversal diazo photoreproduction material which comprises a support and a photosensitive layer coated on a surface of the support, said layer comprising the formulation according to claim
Claim 4
Dependent Claim
19 words
The material according to claim 4 wherein, the compound corresponding to the formula given, an R group is cyclohexyl.
Claim 5
Dependent Claim
21 words
The material according to claim 5 wherein, in the compound corresponding to the formula given, the other R group is isopropyl.
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) | 1974-10-25 | 1975-04-26 | 1975-10-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-10-25 | 1979-04-26 | 1979-10-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-10-25 | 1983-04-26 | 1983-10-26 | $7700.00 | Window Closed / Lapsed |