US3146883A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of coating and inking polystyrene film and resultant article
Assignee: Union Carbide Corp
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Filing: 1961-10-02
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Granted: 1964-09-01
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Expires: 1981-10-02
Abstract
No abstract record available.
Inventors
- 👤 George M Harlan
- 👤 Fanuzzi James
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 16:42
CPC Classifications
B; B41; B41M; B41M1/00; B41M1/26; B41M1/30; B41M1/305; Y; Y10; Y10T; Y10T428/00; Y10T428/24; Y10T428/24802; Y10T428/31504; Y10T428/31855; Y10T428/31909
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
64 words
PROJECTION TRANSPARENCY FILM ADAPTED TO RECEIVE, RETAIN AND PROJECT SHARPLY DEFINED PICTORIAL IMAGES AND LITERAL AND NUMERICAL CHARACTERS AT ELEVATED TEMPERATURES WITHOUT FEATHERING WHICH COMPRISES A TRANSPARENT AND GLOSSY POLYSTYRENE FILM BASE SHEET HAVING A HYDROPHILIC SURFACE, AND ON SAID SURFACE A COATING COMPRISING POLYVINYL ALCOHOL HAVING A 4% VISCOSITY OF FROM 2 TO 50 CENTIPOISES AND ON SAID COATING GLYCOL BASED INK CONFIGURATIONS.
Claim 2
Dependent Claim
64 words
PROJECTION TRANSPARENCY FILM ADAPTED TO RECEIVE, RETAIN AND PROJECT SHARPLY DEFINED PICTORIAL IMAGES AND LITERAL AND NUMERICAL CHARACTERS AT ELEVATED TEMPERATURES WITHOUT FEATHERING WHICH COMPRISES A TRANSPARENT AND GLOSSY POLYSTYRENE FILM BASE SHEET HAVING A HYDROPHILIC SURFACE, AND ON SAID SURFACE A COATING COMPRISING POLYVINYL ALCOHOL HAVING A 4% VISCOSITY OF FROM 2 TO 50 CENTIPOISES AND ON SAID COATING GLYCOL BASED INK CONFIGURATIONS.
References Cited (Backward Citations)
US2519004A
Cited
US2463282A
Cited
US2561402A
Cited
US2668134A
Cited
US2604006A
Cited
US2880898A
Cited
US2860801A
Cited
US2875056A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1967-09-01 | 1968-03-02 | 1968-09-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-09-01 | 1972-03-02 | 1972-09-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-09-01 | 1976-03-02 | 1976-09-01 | $7700.00 | Window Closed / Lapsed |