US3270667A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Planographic printing plates and method of making same
Assignee: Oxford Paper Co
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Filing: 1963-05-14
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Granted: 1966-09-06
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Expires: 1983-05-14
Abstract
No abstract record available.
Inventors
- 👤 Glenn H Perkins
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 11:52
CPC Classifications
B; B41; B41C; B41C1/00; B41C1/10; B41C1/1091; B41N; B41N3/00; B41N3/03; B41N3/036
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
72 words
A PLANOGRAPHIC PRINTING PLATE COMPRISING A BASE AND A COATING THEREON, SAID COATING CONSISTING ESSENTIALLY OF THE INSOLUBLE REACTION PRODUCT OF A COMPOSITION CONSISTING ESSENTIALLY OF DEACETYLATED CHITIN, A CROSS-LINKING AGENT CAPABLE OF REACTING WITH AT LEAST ONE OF THE GROUP OF REACTIVE -OH AND -NH2 OF THE DEACETYLATED CHITIN MOLECULE, AND AN INORGANIC PIGMENT, SAID COATING BEING CAPABLE OF HOLDING BOTH WATER AND GREASY INK AND HAVING THEREON AN OLEPHILIC IMAGE.
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) | 1969-09-05 | 1970-03-07 | 1970-09-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-09-05 | 1974-03-07 | 1974-09-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-09-05 | 1978-03-07 | 1978-09-06 | $7700.00 | Window Closed / Lapsed |