Patent US3658532A successfully refreshed from Google Patents.
US3658532A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Relief or intaglio plastic plate and method of manufacture thereof
Assignee: Individual
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Filing: 1969-07-01
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Granted: 1972-04-25
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Expires: 1989-07-01
Abstract
Abstract Disclosed is a relief or intaglio plastic plate and the method of manufacture thereof whereby an image-bearing transparency of the indicia the plate is to print is permanently bonded to a base plate and thereafter selected areas of the transparency corresponding to the image together with areas of the base plate underlying the selected areas are removed to desired depths.
Inventors
- 👤 Joseph Edward Gilligan
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 08:14
CPC Classifications
B; B44; B44C; B44C1/00; B44C1/22; B44C1/227; B29; B29C; B29C65/00; B29C65/48; B29C66/00; B29C66/01; B29C66/05; B29C66/10; B29C66/11; B29C66/112; B29C66/1122; B29C66/40; B29C66/41; B29C66/45; B29C66/47; B29C66/472; B29C66/70; B29C66/73; B29C66/737; B29C66/7379; B29C66/73793; B29C66/71
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
12 words
The process as in claim 1 where said resist is photographically formed.
Claim 2
Dependent Claim
101 words
The process of making a plastic plate which comprises forming a resist over selected portions of a plastic member to form an image-bearing thin film, permanently bonding said thin film to a base plate with the resist portions on the unbonded surface of said thin film, said base plate being comprised of material soluble in the same solvents in which said thin film is soluble, and thereafter etching down through (1) selected areas of said thin film corresponding to the non-resist portions of said thin film and (2) the areas of the base plate underlying said selected areas to desired depths.
Claim 3
Dependent Claim
136 words
The process of making a plastic plate which comprises forming a resist over selected portions of a plastic member to form an image-bearing thin film, permanently bonding said thin film to a base plate with the resist portions on the unbonded surface of said thin film, said base plate being comprised of material insoluble in a solvent in which said thin film is soluble, treating said thin film with a solvent in which said thin film is soluble to etch down to said base plate through selected areas of said thin film corresponding to the non-resist portions of said thin film, and then treating the areas of the base plate underlying the selected areas of said thin film with a solvent in which the base plate is soluble to etch down there through to desired depths.
Claim 4
Dependent Claim
107 words
The process of making a plastic plate which comprises forming a resist over selected portions of a polyvinyl chloride member to form an image-bearing thin film, permanently bonding said thin film to a base plate with the resist portions on the unBonded surface of said thin film, said base plate being comprised of polyvinyl chloride, treating said thin film and said plate with a solvent in which said polyvinyl chloride is soluble to etch down through (1) selected areas of said thin film corresponding to the non-resist portions of said thin film and (2) the areas of the base plate underlying said selected areas to desired depths.
Claim 5
Dependent Claim
112 words
The process of making a plastic plate which comprises forming a resist over selected portions of a photopolymerizable member permanently bonding said thin film to a base plate with the resist portions on the unbonded surface of said thin film, said base plate being comprised of photopolymerizable material, projecting light down through selected areas of said thin film corresponding to the non-resist portions of said thin film to polymerize (1) those areas of the thin film and (2) the areas of the base plate underlying said selected areas, and then etching down through the remaining areas of said thin film and the underlying non-polymerized areas of said base plate to desired depths.
Claim 6
Dependent Claim
80 words
The process of making a plastic plate which comprises forming a resist over selected portions of a plastic member to form an image-bearing thin film, permanently bonding said thin film to a base plate with the resist portions on the unbonded surface of said thin film, and thereafter removing (1) selected areas of said thin film corresponding to the non-resist portions of said thin film and (2) the areas of the base plate underlying said selected areas to desired depths.
References Cited (Backward Citations)
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Cited
US2875051A
Cited
US3356501A
Cited
US3245793A
Cited
US3305359A
Cited
US3271151A
Cited
US3488191A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1975-04-25 | 1975-10-25 | 1976-04-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-04-25 | 1979-10-25 | 1980-04-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-04-25 | 1983-10-25 | 1984-04-25 | $7700.00 | Window Closed / Lapsed |