US3244523A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Material for photographic reproduction comprising a condensation product of formaldehyde and an amidogen, a polyacid resin and a diazo composition
Assignee: ALLIED PAPER Corp
•
Filing: 1963-01-21
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Granted: 1966-04-05
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Expires: 1983-01-21
Abstract
No abstract record available.
Inventors
- 👤 Growald Bert
- 👤 Robert M Levy
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 20:48
CPC Classifications
G; G03; G03C; G03C5/00; G03C5/60
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
52 words
A COATING COMPOSITIONS FOR PHOTOGRAPHIC REPRODUCTION SYSTEMS COMPRISING AN AQUEOUS SOLUTION OF POLYACRYLIC ACID RESIN AND MELAMINE-FORMALDEHYDE CONDENSATION PRODUCT CONTAINING A WATER SOLUBLE PHOTOSENSITIVE DIAZO COMPOUND WHICH LIBERATES NITROGEN GAS UPON IRRADIATION, THE RATIO OF SAID ACID RESIN TO SAID CONDENSATION PRODUCT IN SAID SOLUTION RANGING FROM ABOUT 20:1 TO ABOUT 1:1.
Claim 2
Dependent Claim
52 words
A COATING COMPOSITIONS FOR PHOTOGRAPHIC REPRODUCTION SYSTEMS COMPRISING AN AQUEOUS SOLUTION OF POLYACRYLIC ACID RESIN AND MELAMINE-FORMALDEHYDE CONDENSATION PRODUCT CONTAINING A WATER SOLUBLE PHOTOSENSITIVE DIAZO COMPOUND WHICH LIBERATES NITROGEN GAS UPON IRRADIATION, THE RATIO OF SAID ACID RESIN TO SAID CONDENSATION PRODUCT IN SAID SOLUTION RANGING FROM ABOUT 20:1 TO ABOUT 1:1.
References Cited (Backward Citations)
GB645825A
Cited
US2699392A
Cited
US2703756A
Cited
US2908572A
Cited
US3032414A
Cited
GB850954A
Cited
US2996381A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1969-04-04 | 1969-10-04 | 1970-04-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-04-04 | 1973-10-04 | 1974-04-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-04-04 | 1977-10-04 | 1978-04-05 | $7700.00 | Window Closed / Lapsed |