US3109748A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Thermographic reproduction composite wherein a calcium carbonate layer is effected by a transferred heat-sensitive material
Assignee: Columbia Ribbon and Carbon Manufacturing Co Inc
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Filing: 1960-04-28
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Granted: 1963-11-05
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Expires: 1980-04-28
Abstract
No abstract record available.
Inventors
- 👤 Douglas A Newman
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 16:42
CPC Classifications
B; B41; B41M; B41M5/00; B41M5/26; B41M5/382; B41M5/38207; Y; Y10; Y10S; Y10S428/00; Y10S428/913
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
99 words
A SYSTEM FOR PREPARING DUPLICAT COPIES OF AN IMAGED ORIGINAL SHEET THROUGH THE USE OF INFRARED RADIATION, WHICH COMPRISES A DONOR SHEET HAVING A FOUNDATION BEARING A BEARING A COLOR-FREE HEAT-MELTABLE LAYER CONSISTING OF A WAX COMPOSITION HAVING A MELTING POINT OF FROM 140*F. TO 22/*F., AND A COPY SHEET HAVING A COLORED FOUNDATION BEARING AN OPAQUE COATING WHICH IS NON-HEAT-TRANSPARENTIZABLE BUT WHICH IS CAPABLE OF BECOMING TRANSPARENT WHEN IMPREGNATED WITH MELTED WAX, THE LAYER ON THE DONOR SHEET NOT BEING CAPABLE OF RENDERING THE OPAQUE COATING OF THE COPY SHEET TRANSPARENT UNDER THE EFFECTS OF IMAGING PRESSURE ALONE.
Claim 2
Independent Claim
99 words
A SYSTEM FOR PREPARING DUPLICAT COPIES OF AN IMAGED ORIGINAL SHEET THROUGH THE USE OF INFRARED RADIATION, WHICH COMPRISES A DONOR SHEET HAVING A FOUNDATION BEARING A BEARING A COLOR-FREE HEAT-MELTABLE LAYER CONSISTING OF A WAX COMPOSITION HAVING A MELTING POINT OF FROM 140*F. TO 22/*F., AND A COPY SHEET HAVING A COLORED FOUNDATION BEARING AN OPAQUE COATING WHICH IS NON-HEAT-TRANSPARENTIZABLE BUT WHICH IS CAPABLE OF BECOMING TRANSPARENT WHEN IMPREGNATED WITH MELTED WAX, THE LAYER ON THE DONOR SHEET NOT BEING CAPABLE OF RENDERING THE OPAQUE COATING OF THE COPY SHEET TRANSPARENT UNDER THE EFFECTS OF IMAGING PRESSURE ALONE.
References Cited (Backward Citations)
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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) | 1966-11-04 | 1967-05-06 | 1967-11-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-11-04 | 1971-05-06 | 1971-11-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-11-04 | 1975-05-06 | 1975-11-05 | $7700.00 | Window Closed / Lapsed |