US3223569A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Application of films
Assignee: GTE Sylvania Inc
•
Filing: 1961-04-27
•
Granted: 1965-12-14
•
Expires: 1981-04-27
Abstract
No abstract record available.
Inventors
- 👤 William R Mckeirnan
- 👤 Leonard D Schwender
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 17:29
CPC Classifications
H; H01; H01J; H01J9/00; H01J9/02; H01J9/04; H01J9/042; H01J9/047
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
91 words
THE PROCESS OF APPLYING A FILM CONTAINING POTENTIALLY ELECTRON EMISSIVE MATERIAL AND AN ETHYL CELLULOSE BINDER THEREFOR TO A CATHODE BASE METAL COMPRISING SUBJECTING SAID FILM AND BASE, WHILE IN CONTACT AND AT COOL TEMPERATURES, TO THE EFFECTS OF A HOT DRY ATMOSPHERE CONTAINING A MIXTURE OF ISOMERIC AMYL ACETATES WHEREBY INITIALLY SOME OF THE ACETATES CONDENSE UPON THE COOL METAL AND FILM TO EFFECT A COMPLETE ADHERENCE OF THE FILM TO THE METAL AND, SUBSEQUENTLY, TO DRY THE METAL AND FILM, AND THEN REMOVING THE RESULTING CATHODE FROM SAID ATMOSPHERE.
Claim 2
Dependent Claim
91 words
THE PROCESS OF APPLYING A FILM CONTAINING POTENTIALLY ELECTRON EMISSIVE MATERIAL AND AN ETHYL CELLULOSE BINDER THEREFOR TO A CATHODE BASE METAL COMPRISING SUBJECTING SAID FILM AND BASE, WHILE IN CONTACT AND AT COOL TEMPERATURES, TO THE EFFECTS OF A HOT DRY ATMOSPHERE CONTAINING A MIXTURE OF ISOMERIC AMYL ACETATES WHEREBY INITIALLY SOME OF THE ACETATES CONDENSE UPON THE COOL METAL AND FILM TO EFFECT A COMPLETE ADHERENCE OF THE FILM TO THE METAL AND, SUBSEQUENTLY, TO DRY THE METAL AND FILM, AND THEN REMOVING THE RESULTING CATHODE FROM SAID ATMOSPHERE.
References Cited (Backward Citations)
US1633577A
Cited
US2125874A
Cited
US2202025A
Cited
US2281646A
Cited
US2334232A
Cited
US2403313A
Cited
US2377208A
Cited
US2660547A
Cited
US2986671A
Cited
US2813051A
Cited
US2998052A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1968-12-13 | 1969-06-14 | 1969-12-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-12-13 | 1973-06-14 | 1973-12-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-12-13 | 1977-06-14 | 1977-12-14 | $7700.00 | Window Closed / Lapsed |