US2903377A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of applying films to cathode ray tube screens
Assignee: RCA Corp
•
Filing: 1955-10-13
•
Granted: 1959-09-08
•
Expires: 1975-10-13
Abstract
No abstract record available.
Inventors
- 👤 Jr Theodore A Saulnier
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 12:53
CPC Classifications
H; H01; H01J; H01J9/00; H01J9/20; H01J9/22; H01J9/227; H01J9/2277; H01J29/00; H01J29/02; H01J29/10; H01J29/18; H01J29/28
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
70 words
THE METHOD OF APPLYING A SMOOTH RESINOUS FILM TO A PHOSPHOR SURFACE, SAID METHOD COMPRISING APPLYING A FILM, FORMED FROM AN AQUEOUS COLLOIDAL SOLUTION, HAVING A VISCOSITY GREATER THAN WATER, OVER SAID PHOSPHOR SURFACE, FORMING ON SAID FILM A SECOND FILM OF A HEAT DECOMPOSABLE RESIN, WHICH IS INCOMPATIBLE WITH SAID AQUEOUS FILM, REMOVING SAID AQUEOUS FILM AND CAUSING SAID SECOND FILM TO HARDEN AND SOLIDIFY TO A SMOOTH FINSIH.
Claim 2
Independent Claim
70 words
THE METHOD OF APPLYING A SMOOTH RESINOUS FILM TO A PHOSPHOR SURFACE, SAID METHOD COMPRISING APPLYING A FILM, FORMED FROM AN AQUEOUS COLLOIDAL SOLUTION, HAVING A VISCOSITY GREATER THAN WATER, OVER SAID PHOSPHOR SURFACE, FORMING ON SAID FILM A SECOND FILM OF A HEAT DECOMPOSABLE RESIN, WHICH IS INCOMPATIBLE WITH SAID AQUEOUS FILM, REMOVING SAID AQUEOUS FILM AND CAUSING SAID SECOND FILM TO HARDEN AND SOLIDIFY TO A SMOOTH FINSIH.
References Cited (Backward Citations)
US2644770A
Cited
US2695892A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1962-09-07 | 1963-03-09 | 1963-09-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-09-07 | 1967-03-09 | 1967-09-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-09-07 | 1971-03-09 | 1971-09-08 | $7700.00 | Window Closed / Lapsed |