US3131302A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Thermoprinting by pre-heating original image
Assignee: 3M Co
•
Filing: 1959-12-03
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Granted: 1964-04-28
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Expires: 1979-12-03
Abstract
No abstract record available.
Inventors
- 👤 Donal G Kimble
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 00:10
CPC Classifications
G; G03; G03B; G03B27/00; G03B27/02; G03B27/14; G03B27/30; G03B27/306; B; B41; B41M; B41M7/00
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
78 words
IN A THERMOGRAPHIC COPYING MACHING FOR REPRODUCING A DIFFERENTIALLY RADIATION-ABSORPTIVE IMAGED PAPER GRAPHIC ORIGINAL ON A HEAT-SENSITIVE COPY-PAPER, THE COMBINATION OF: MEANS FOR DIRECTLY, BRIEFLY AND INTENSELY PROGRESSIVELY IRRADIATING THE ENTIRE UNOBSTRUCTED IMAGED SURFACE OF SAID ORIGINAL TO PROVIDE THEREON A HEAT-PATTERN CORRESPONDING TO THE GRAPHIC PATTERN THEREOF; MEANS FOR PROMPTLY THEREAFTER PLACING SAID IRRADIATED SURFACE IN CONTACT WITH THE SURFACE OF A VISIBLY HEAT-SENSITIVE COPYPAPER; AND MEANS FOR BRIEFLY PRESSING SAID SURFACES TOGETHER IN MUTUALLY HEAT-CONDUCTIVE PRESSURE-CONTACT.
Claim 2
Dependent Claim
78 words
IN A THERMOGRAPHIC COPYING MACHING FOR REPRODUCING A DIFFERENTIALLY RADIATION-ABSORPTIVE IMAGED PAPER GRAPHIC ORIGINAL ON A HEAT-SENSITIVE COPY-PAPER, THE COMBINATION OF: MEANS FOR DIRECTLY, BRIEFLY AND INTENSELY PROGRESSIVELY IRRADIATING THE ENTIRE UNOBSTRUCTED IMAGED SURFACE OF SAID ORIGINAL TO PROVIDE THEREON A HEAT-PATTERN CORRESPONDING TO THE GRAPHIC PATTERN THEREOF; MEANS FOR PROMPTLY THEREAFTER PLACING SAID IRRADIATED SURFACE IN CONTACT WITH THE SURFACE OF A VISIBLY HEAT-SENSITIVE COPYPAPER; AND MEANS FOR BRIEFLY PRESSING SAID SURFACES TOGETHER IN MUTUALLY HEAT-CONDUCTIVE PRESSURE-CONTACT.
References Cited (Backward Citations)
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Cited
US2503758A
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US2680062A
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US2740895A
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US2958788A
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US2993805A
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1967-04-28 | 1967-10-28 | 1968-04-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-04-28 | 1971-10-28 | 1972-04-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-04-28 | 1975-10-28 | 1976-04-28 | $7700.00 | Window Closed / Lapsed |