US3274929A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Planographic printing plate and processes
Assignee: Columbia Ribbon and Carbon Manufacturing Co Inc
•
Filing: 1962-06-13
•
Granted: 1966-09-27
•
Expires: 1982-06-13
Abstract
No abstract record available.
Inventors
- 👤 Douglas A Newman
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 19:04
CPC Classifications
B; B41; B41C; B41C1/00; B41C1/10; B41C1/1041
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
94 words
A HEAT-IMAGEABLE PLANOGRAPHIC PRINTING PLATE COMPPRISING A FLEXIBLE FOUNDATION SHEET HAVING ON THE SURFACE THEREOF A HEAT-MELTABLE OLEOPHILIC LAYER COMPRISING THE RESIDUE OF AN AQUEOUS WAX EMULSION COMPRISING DISCRETE, MINUTE PARTICLES OF WAX, AN EMULSIFYING AGENT AND WATER AFTER THE EVAPORATION OF SAID WATER, SAID LAYER HAVING A THICKNESS WITHIN THE RANGE OF FROM 3 TO 5 POINTS, A MELTING TEMPERATURE WITHIN THE RANGE OF FROM 120*F. TO 200* F. AND HAVING A ROUGH UNEVEN SURFACE PROVIDING GOOD RECEPTIVITY FOR A HYDROPHILIC PRINTING COATING, AND HAVING ON SAID ROUGH UNEVEN SURFACE A WATER-INSOLUBLE HYDRO-
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) | 1969-09-26 | 1970-03-28 | 1970-09-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-09-26 | 1974-03-28 | 1974-09-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-09-26 | 1978-03-28 | 1978-09-27 | $7700.00 | Window Closed / Lapsed |