Reproduction transfer sheet and method of making
Abstract
Abstract THE PRESENT INVENTION RELATES TO REPRODUCTION TRANSFER SHEETS PREPARED BY COATING THE UPPER SIDES OF WHITE OR LIGHTLY COLORED SHEETS WITH A SOLUTION OF POLYETHYLENE IN TETACHLORETHYLENE CONTAINING DARK COLORED PIGMENTS OR DYES, AT A TEMPERATURE NOT SUBSTANTIALLY LOWER THAN 80* C. AFTER REMOVAL OF THE TETRACHLOROETHYLENE SOLVENT A WHITE OR LIGHTLY COLORED COATING OF POLYEHTYLENE MIXED WITH, FOR EXAMPLE, TITANIUM DIOXIDE, IS APPLIED OVER THE INITIAL COLORED COATING IN THE FORM OF A TETRACHLOROETHYLENE SOLUTION, AT A TEMPERATURE BELOW 80*C. AFTER REMOVAL OF THE SOLVENT. A WHITE OR LIGHTLY COLORED COATING IS APPLIED TO THE REVERSE SIDE OF THE SHEET. THIS COATING CONSISTS OF MICROCRYSTALLINE WAX TO WHICH TITANIUM DIOXIDE OR OTHER LIGHT COLORED PIGMENT MAY BE ADDED AS A BRIGHTENER. IF DESIRED, OTHER MATERIALS MAY ALSO BE INCLUDED IN THE COATING, AS FOR EXAMPLE, MAGNESIUM STEARATE FOR THE PURPOSE OF INCREASING THE ADHERENCE OF THE COATING. D R A W I N G
Inventors
- 👤 Edgar Breidthardt
Bibliographic Details
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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) | 1974-02-08 | 1974-08-10 | 1975-02-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-02-08 | 1978-08-10 | 1979-02-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-02-08 | 1982-08-10 | 1983-02-09 | $7700.00 | Window Closed / Lapsed |