US3791905A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method for transferring information printed on a clay-coated substrate to a transparent substrate for the purpose of making slides
Assignee: Q S Ind Inc
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Filing: 1971-02-19
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Granted: 1974-02-12
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Expires: 1991-02-19
Abstract
Abstract A method of making slides using a transfer process including contacting a clay-coated image bearing surface with an adhesive coated transparent substrate, burnishing the image and the transparent substrate and separating the transparent substrate from the original image bearing surface whereby a transfer of the image to the substrate is accomplished which is suitable for conventional image projection.
Inventors
- 👤 D Molner
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 00:50
CPC Classifications
G; G03; G03C; G03C11/00; G03C11/22; B; B44; B44C; B44C1/00; B44C1/16; B44C1/165; B44C1/17; B44C1/1733
Claims Analysis
Total Claims: 3
Claim 1
Independent Claim
24 words
A method of transferring images in accordance with claim 1 wherein water is used as the liquid for wetting the clay-coated image bearing surface.
Claim 2
Dependent Claim
35 words
A method of transferring images in accordance with claim 1 wherein the adhesive free supportive and protective surface is transparent and further applying pressure to cause the transparent surface to adhere to the transparent substrate.
Claim 3
Independent Claim
126 words
A method of transferring images which comprises contacting a clay-coated image bearing surface with a transparent substrate which has been previously coated with a transparent pressure sensitive adhesive layer, burnishing the image to the pressure sensitive adhesive layer of the transparent substrate to cause the image to adhere to the transparent substrate, wetting the clay-coated image beAring surface with a liquid in which the clay coating is soluble, separating the image from the image bearing surface by disjoining the image bearing surface from the pressure sensitive adhesive whereby the image is transferred to the transparent substrate, and coating the image-containing adhesive layer of the transparent substrate with a transparent adhesive-free fixative, whereby a protected permanent image is provided in a condition suitable for conventional image projection.
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) | 1977-02-11 | 1977-08-13 | 1978-02-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-02-11 | 1981-08-13 | 1982-02-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-02-11 | 1985-08-13 | 1986-02-12 | $7700.00 | Window Closed / Lapsed |