Patent US3391637A successfully refreshed from Google Patents.
US3391637A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Makeready method
Assignee: Warren SD Co
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Filing: 1965-08-05
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Granted: 1968-07-09
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Expires: 1985-08-05
Abstract
No abstract record available.
Inventors
- 👤 Alger P Reynolds
- 👤 Jr Edward M Flaherty
- 👤 Lawrence A Wilson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 10:30
CPC Classifications
B; B41; B41M; B41M9/00; B41M9/02
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
194 words
IN LETTERPRESS PRINTING, A MAKEREADY METHOD COMPRISING: APPLYING A COATING A RADIANT ENERGY ABSORPTIVE INK TO THE PRINTING SURFACE OF THE PRINTING FORM, SAID COATING BEING IN EXCESS OF THAT NORMALLY APPLIED BY THE INK ROLLERS IN ORDER TO INSURE COVERAGE OF BOTH RAISED AND DEPRESSED AREAS OF SAID PRINTING SURFACE; REMOVING ANY EXCESS INK FROM THE RAISED AREAS OF SAID PRINTING SURFACE IN A MANNER PERMITTING THE COATING ON THE DEPRESSED AREAS TO REMAIN EXCESSIVE; PRINTING THE PATTERN OF SAID PRINTING SURFACE UPON A MAKEREADY SHEET OF THE TYPE PROVIDED WITH A LAYER OF SELECTIVELY THERMOEXPANSIBLE MATERIAL, SAID PRINTING BEING PERFORMED AT A GREATER THAN NORMAL IMPRESSION PRESSURE IN ORDER TO INSURE FULL CONTACT BETWEEN THE DEPRESSED AREAS OF SAID PRINTING SURFACE OF SAID MAKEREADY SHEET, SAID MATERIAL BEING NON-ABSORPTIVE OF RADIANT ENERGY; EXPOSING THE PRINTED SURFACE OF SAID MAKEREADY SHEET TO SOURCE OF RADIANT ENERGY FOR A PERIOD SUFFICIENT TO EXPAND THE AREAS OF SAID LAYER IN HEAT CONDUCTIVE ASSOCIATION WITH THE PATTERN OF RADIATION ABSORPTIVE INK PRINTED THEREON; AND, THEREAFTER POSITIONING SAID MAKEREADY SHEET AS AN INTERLAY BETWEEN THE PRINTING FORM AND ITS UNDERLYING SUPPORT SURFACE IN REGISTRATION WITH THE LATTER.
Claim 2
Dependent Claim
194 words
IN LETTERPRESS PRINTING, A MAKEREADY METHOD COMPRISING: APPLYING A COATING A RADIANT ENERGY ABSORPTIVE INK TO THE PRINTING SURFACE OF THE PRINTING FORM, SAID COATING BEING IN EXCESS OF THAT NORMALLY APPLIED BY THE INK ROLLERS IN ORDER TO INSURE COVERAGE OF BOTH RAISED AND DEPRESSED AREAS OF SAID PRINTING SURFACE; REMOVING ANY EXCESS INK FROM THE RAISED AREAS OF SAID PRINTING SURFACE IN A MANNER PERMITTING THE COATING ON THE DEPRESSED AREAS TO REMAIN EXCESSIVE; PRINTING THE PATTERN OF SAID PRINTING SURFACE UPON A MAKEREADY SHEET OF THE TYPE PROVIDED WITH A LAYER OF SELECTIVELY THERMOEXPANSIBLE MATERIAL, SAID PRINTING BEING PERFORMED AT A GREATER THAN NORMAL IMPRESSION PRESSURE IN ORDER TO INSURE FULL CONTACT BETWEEN THE DEPRESSED AREAS OF SAID PRINTING SURFACE OF SAID MAKEREADY SHEET, SAID MATERIAL BEING NON-ABSORPTIVE OF RADIANT ENERGY; EXPOSING THE PRINTED SURFACE OF SAID MAKEREADY SHEET TO SOURCE OF RADIANT ENERGY FOR A PERIOD SUFFICIENT TO EXPAND THE AREAS OF SAID LAYER IN HEAT CONDUCTIVE ASSOCIATION WITH THE PATTERN OF RADIATION ABSORPTIVE INK PRINTED THEREON; AND, THEREAFTER POSITIONING SAID MAKEREADY SHEET AS AN INTERLAY BETWEEN THE PRINTING FORM AND ITS UNDERLYING SUPPORT SURFACE IN REGISTRATION WITH THE LATTER.
References Cited (Backward Citations)
US1730229A
Cited
US2825282A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1971-07-09 | 1972-01-08 | 1972-07-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-07-09 | 1976-01-08 | 1976-07-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-07-09 | 1980-01-08 | 1980-07-09 | $7700.00 | Window Closed / Lapsed |