Patent US3978328A successfully refreshed from Google Patents.
US3026232A
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Method for providing films of thermoplastic material on the exterior faces of cathode ray tubes
Assignee: Monsanto Chemicals Ltd
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Filing: 1959-01-30
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Granted: 1962-03-20
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Expires: 1979-01-30
Abstract
No abstract record available.
Inventors
- 👤 Lionel N Finch
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 16:14
CPC Classifications
H; H01; H01J; H01J29/00; H01J29/86; H01J29/87; B; B32; B32B; B32B17/00; B32B17/06; B32B17/10; B32B17/10005; B32B17/10807; B32B17/10889; H01J2229/00; H01J2229/87; H01J2229/875; Y; Y10; Y10T; Y10T156/00; Y10T156/10; Y10T156/1002; Y10T156/1028
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
119 words
A METHOD FOR PROVIDING THE CONVEX EXTERIOR SURFACE OF THE FACE OF A CATHODE RAY TUBE WITH AN INTIMATELY CONTACTED CONTINUOUS THERMOPLASTIC FILM WHICH COMPRISES CONTACTING A CONVEX SHAPED THERMOPLASTIC FILM WITH THE EXTERIOR SURFACE OF THE VIEWING FACE OF SAID TUBE FIRST AT ABOUT THE APEXES OF BOTH FILM AND THE FACE AND THEREAFTER PROGRESSIVELY CONTACTING SAID FILM FROM SAID APEXES OUTWARDLY OVER THE REMAINING EXTERIOR SURFACE OF THE VIEWING FACE WHILE MAINTAINING A LIQUID MEDIUM BETWEEN SAID FILM AND THE SURFACE OF SAID VIEWING FACE DURING CONTACTING THEREOF, SAID THERMOPLASTIC FILM BEING CONSTITUTED OF PLASTICIZED POLYVINYL BUTYRAL AT LEAST AT THE SURFACE THEREOF WHICH CONTACTS THE EXTERIOR SURFACE OF THE VIEWING FACE OF SAID CATHODE RAY TUBE.
Claim 2
Independent Claim
119 words
A METHOD FOR PROVIDING THE CONVEX EXTERIOR SURFACE OF THE FACE OF A CATHODE RAY TUBE WITH AN INTIMATELY CONTACTED CONTINUOUS THERMOPLASTIC FILM WHICH COMPRISES CONTACTING A CONVEX SHAPED THERMOPLASTIC FILM WITH THE EXTERIOR SURFACE OF THE VIEWING FACE OF SAID TUBE FIRST AT ABOUT THE APEXES OF BOTH FILM AND THE FACE AND THEREAFTER PROGRESSIVELY CONTACTING SAID FILM FROM SAID APEXES OUTWARDLY OVER THE REMAINING EXTERIOR SURFACE OF THE VIEWING FACE WHILE MAINTAINING A LIQUID MEDIUM BETWEEN SAID FILM AND THE SURFACE OF SAID VIEWING FACE DURING CONTACTING THEREOF, SAID THERMOPLASTIC FILM BEING CONSTITUTED OF PLASTICIZED POLYVINYL BUTYRAL AT LEAST AT THE SURFACE THEREOF WHICH CONTACTS THE EXTERIOR SURFACE OF THE VIEWING FACE OF SAID CATHODE RAY TUBE.
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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) | 1965-03-19 | 1965-09-18 | 1966-03-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-03-19 | 1969-09-18 | 1970-03-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-03-19 | 1973-09-18 | 1974-03-20 | $7700.00 | Window Closed / Lapsed |