Patent US3147377A successfully refreshed from Google Patents.
US3147377A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Thermographic production of color-projecting transparencies and sheet materials usefutherein
Assignee: 3M Co
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Filing: 1960-05-25
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Granted: 1964-09-01
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Expires: 1980-05-25
Abstract
No abstract record available.
Inventors
- 👤 Donald J Newman
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 13:55
CPC Classifications
B; B41; B41M; B41M5/00; B41M5/26; B41M5/382; B41M5/38207; C; C12; C12P; C12P25/00; Y; Y10; Y10S; Y10S430/00; Y10S430/152
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
102 words
METHOD OF MAKING PERMANENT PROJECTION TRANSPARENCY REPRODUCTION OF A DIFFERENTIALLY RADIATION-ABSORPTIVE GRAPHIC ORIGINAL AND CAPABLE OF PROJECTING A COLORED IMAGE COMPRISING BRIEFLY INTENSELY IRRADIATING SAID ORIGINAL WHILE IN HEAT-CONDUCTIVE CONTACT WITH A HEAT-SENSITIVE COPY-SHEET COMPOSITE INCLUDING A TRANSPARENT THIN DYERECEPTIVE RECEPTOR FILM AND A DYE-CONTAINING SOURCE SHEET IN MUTUALLY FACE-TO-FACE CONTACT AND TO AN EXTENT SUFFICIENT TO CAUSE DYEING OF SAID RECEPTOR FILM AT AREAS CORRESPONDING TO RADIATION-ABSORPTIVE IMAGE-FORMING AREAS OF SAID ORIGINAL, AT LEAST ONE OF SAID FILM AND SAID SHEET CONTAINING A PLASTICIZER MATERIAL WHICH IS A SOLVENT FOR SAID DYE; AND SEPARATING SAID RECEPTOR FILM AND SIAD SOURCE SHEET.
Claim 2
Dependent Claim
102 words
METHOD OF MAKING PERMANENT PROJECTION TRANSPARENCY REPRODUCTION OF A DIFFERENTIALLY RADIATION-ABSORPTIVE GRAPHIC ORIGINAL AND CAPABLE OF PROJECTING A COLORED IMAGE COMPRISING BRIEFLY INTENSELY IRRADIATING SAID ORIGINAL WHILE IN HEAT-CONDUCTIVE CONTACT WITH A HEAT-SENSITIVE COPY-SHEET COMPOSITE INCLUDING A TRANSPARENT THIN DYERECEPTIVE RECEPTOR FILM AND A DYE-CONTAINING SOURCE SHEET IN MUTUALLY FACE-TO-FACE CONTACT AND TO AN EXTENT SUFFICIENT TO CAUSE DYEING OF SAID RECEPTOR FILM AT AREAS CORRESPONDING TO RADIATION-ABSORPTIVE IMAGE-FORMING AREAS OF SAID ORIGINAL, AT LEAST ONE OF SAID FILM AND SAID SHEET CONTAINING A PLASTICIZER MATERIAL WHICH IS A SOLVENT FOR SAID DYE; AND SEPARATING SAID RECEPTOR FILM AND SIAD SOURCE SHEET.
References Cited (Backward Citations)
US2699113A
Cited
US2721821A
Cited
US2769391A
Cited
US3002858A
Cited
US2868124A
Cited
US2944037A
Cited
US2916622A
Cited
US2940866A
Cited
US2954311A
Cited
US2893890A
Cited
US3083132A
Cited
US3054692A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1967-09-01 | 1968-03-02 | 1968-09-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-09-01 | 1972-03-02 | 1972-09-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-09-01 | 1976-03-02 | 1976-09-01 | $7700.00 | Window Closed / Lapsed |