Patent US3701675A successfully refreshed from Google Patents.
Patent US3968299A successfully refreshed from Google Patents.
US3968299A
Expired / Lapsed
US
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Two-way, selective directional, image-transfer sheet
Assignee: Individual
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Filing: 1975-02-21
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Granted: 1976-07-06
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Expires: 1995-02-21
Abstract
Abstract A directional, image-transfer paper having multiple reagents for image reproduction and screening means for selectively releasing one of the reagents only in the direction of impact of the image-producing implement.
Inventors
- 👤 John D. Angleman
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 10:13
CPC Classifications
B; B41; B41M; B41M5/00; B41M5/124; B41M5/1243; Y; Y10; Y10S; Y10S428/00; Y10S428/914; Y10T; Y10T428/00; Y10T428/24; Y10T428/24942; Y10T428/25
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
98 words
An image forming and transferring sheet comprising a base sheet having a first face and a second face, each of said faces having image transfer means for transferring an image to an adjacent sheet, said image transfer means including an image forming agent on each of said faces, and means for securing said image forming agents on said sheet for release only in a preselected direction of pressure by an imaging instrument, said securing means including screening means normally occluding passage of said image forming agents until distention thereof into an outwardly convex shape by an imaging instrument.
Claim 2
Dependent Claim
98 words
An image forming and transferring sheet comprising a base sheet having a first face and a second face, each of said faces having image transfer means for transferring an image to an adjacent sheet, said image transfer means including an image forming agent on each of said faces, and means for securing said image forming agents on said sheet for release only in a preselected direction of pressure by an imaging instrument, said securing means including screening means normally occluding passage of said image forming agents until distention thereof into an outwardly convex shape by an imaging instrument.
Claim 3
Dependent Claim
14 words
The image sheet of claim 1 in which said screening means includes discrete particles.
Claim 4
Dependent Claim
37 words
The image sheet set forth in claim 1 in which said image-forming agents comprise first and second pairs of mutual image-forming reactants, the mutual reactants of each pair being positioned on opposite sides of said base sheet.
Claim 5
Dependent Claim
19 words
The image sheet set forth in claim 3 in which at least one reactant of each pair is microencapsulated.
Claim 6
Dependent Claim
36 words
The image sheet set forth in claim 4 in which each of said image forming reactants are inert with respect to the adjacent reactant of the other pair on the same side of the base sheet.
References Cited (Backward Citations)
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Cited
US2548366A
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US2550469A
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US3769057A
Cited
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Cited
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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) | 1979-07-06 | 1980-01-05 | 1980-07-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1983-07-06 | 1984-01-05 | 1984-07-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1987-07-06 | 1988-01-05 | 1988-07-06 | $7700.00 | Window Closed / Lapsed |