US3682633A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Color proofing method
Assignee: 3M Co
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Filing: 1970-05-11
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Granted: 1972-08-08
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Expires: 1990-05-11
Abstract
Abstract A CLEAR, TRANSPARENT SHEET SUITABLE FOR ACCEPTING OLEOINK IN IMAGE AREAS AND REJECTING OLEO-INK IN NON-IMAGE AREAS WITHOUT THE NEED OF DAMPENERS, THE NON-IMAGE AREAS BEING A HIGH ADHESIVE LAYER HAVING AN ADHESIVE RELEASE VALUE OF LESS THAN 100 GRAMS/INCH, THE SHEET BEING USEFUL FOR COLOR PROOFING WHEREIN THE OLEO-INK TO BE USED IN THE FINAL PRINTING JOB CAN BE APPLIED TO THE SHEET FOR PRE-PRESS PROOFING PURPOSES.
Inventors
- 👤 John L Curtin
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 22:44
CPC Classifications
G; G03; G03F; G03F7/00; G03F7/004; G03F7/075; G03F7/0752; B; B41; B41C; B41C1/00; B41C1/10; B41C1/1041; G03F3/00; G03F3/10
Claims Analysis
Total Claims: 0
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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) | 1975-08-08 | 1976-02-07 | 1976-08-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-08-08 | 1980-02-07 | 1980-08-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-08-08 | 1984-02-07 | 1984-08-08 | $7700.00 | Window Closed / Lapsed |