US2880110A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Heat-sensitive copying-paper
Assignee: 3M Co
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Filing: 1954-12-02
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Granted: 1959-03-31
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Expires: 1974-12-02
Abstract
No abstract record available.
Inventors
- 👤 Carl S Miller
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 06:20
CPC Classifications
B; B41; B41M; B41M5/00; B41M5/26; B41M5/36; Y; Y10; Y10S; Y10S428/00; Y10S428/913; Y10T; Y10T428/00; Y10T428/31504; Y10T428/31971; Y10T428/31975; Y10T428/31978; Y10T428/31982; Y10T428/31986
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
83 words
A HEAT-SENSITIVE COPYING-PAPER, ON BEING PLACED IN HEAT-CONDUCTIVE CONTACT WITH AN ORIGINAL HAVING PREFERENTIALLY RADIATION-ABSORBING AREAS AND ON IRRADIATION OF SAID ORIGINAL AS HEREINDESCRIBED, TO PROVIDE A VISIBLE REPRODUCTION OF SAID ORIGINAL, SAID COPYING-PAPER COMPRISING A BACKING MEMBER CARRYING A FIRMLY BONDED, THIN OPAQUE, VISIBLY HEAT-SENSITIVE LAYER COMPRISING COLOR MATERIAL UNIFORMLY INTERSPERSED WITHIN AN OBSCURING MASS OF PARTICLES OF NORMALLY TRANSPARENT STABLE ORGANIC FUSIBLE SOLID MELTING TO A LIQUID WITHOUT APPRECIABLE VOLATILIZATION OR DECOMPOSITION AT A TEMPERATURE WITHIN THE RANGE OF ABOUT 50-150*C.
Claim 2
Dependent Claim
83 words
A HEAT-SENSITIVE COPYING-PAPER, ON BEING PLACED IN HEAT-CONDUCTIVE CONTACT WITH AN ORIGINAL HAVING PREFERENTIALLY RADIATION-ABSORBING AREAS AND ON IRRADIATION OF SAID ORIGINAL AS HEREINDESCRIBED, TO PROVIDE A VISIBLE REPRODUCTION OF SAID ORIGINAL, SAID COPYING-PAPER COMPRISING A BACKING MEMBER CARRYING A FIRMLY BONDED, THIN OPAQUE, VISIBLY HEAT-SENSITIVE LAYER COMPRISING COLOR MATERIAL UNIFORMLY INTERSPERSED WITHIN AN OBSCURING MASS OF PARTICLES OF NORMALLY TRANSPARENT STABLE ORGANIC FUSIBLE SOLID MELTING TO A LIQUID WITHOUT APPRECIABLE VOLATILIZATION OR DECOMPOSITION AT A TEMPERATURE WITHIN THE RANGE OF ABOUT 50-150*C.
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) | 1962-03-30 | 1962-09-29 | 1963-03-31 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-03-30 | 1966-09-29 | 1967-03-31 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-03-30 | 1970-09-29 | 1971-03-31 | $7700.00 | Window Closed / Lapsed |