Patent US3315599A successfully refreshed from Google Patents.
US3315599A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Process for the preparation of printing plates and material for use therein
Assignee: Azoplate Corp
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Filing: 1963-06-28
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Granted: 1967-04-25
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Expires: 1983-06-28
Abstract
No abstract record available.
Inventors
- 👤 Lind Erwin
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 21:41
CPC Classifications
B; B41; B41N; B41N3/00; B41N3/08
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
74 words
A PROCESS FOR HYDROPHILIZING THE NON-IMAGE AREAS OF AN ELECTROPHOTOGRAPHIC MATERIAL HAVING A FIXED IMAGE THEREON WITH COMPRISES TREATING THE SURFACE OF THE MATERIAL WITH AN AQUEOUS SOLUTION INCLUDING A COMPOUND SELECTED FROM THE GROUP CONSISTING OF BORIC ACID AND SALTS THEREOF, A HYDROPHILIC ORGANIC ACID OF HIGHER MOLECULAR WEIGHT, AND AT LEAST ONE ADDITIVE SELECTED FROM THE GROUP CONSISTING OF A MOISTURE-CONSERVING AGENT, A WETTING AND SWELLING AGENT, AND A HYDROPHILIC FILM-FORMING SUBSTANCE.
Claim 2
Dependent Claim
74 words
A PROCESS FOR HYDROPHILIZING THE NON-IMAGE AREAS OF AN ELECTROPHOTOGRAPHIC MATERIAL HAVING A FIXED IMAGE THEREON WITH COMPRISES TREATING THE SURFACE OF THE MATERIAL WITH AN AQUEOUS SOLUTION INCLUDING A COMPOUND SELECTED FROM THE GROUP CONSISTING OF BORIC ACID AND SALTS THEREOF, A HYDROPHILIC ORGANIC ACID OF HIGHER MOLECULAR WEIGHT, AND AT LEAST ONE ADDITIVE SELECTED FROM THE GROUP CONSISTING OF A MOISTURE-CONSERVING AGENT, A WETTING AND SWELLING AGENT, AND A HYDROPHILIC FILM-FORMING SUBSTANCE.
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) | 1970-04-24 | 1970-10-24 | 1971-04-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-04-24 | 1974-10-24 | 1975-04-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-04-24 | 1978-10-24 | 1979-04-25 | $7700.00 | Window Closed / Lapsed |