US3264074A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Thin film electron emissive electrode
Assignee: Lear Siegler Inc
•
Filing: 1962-04-04
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Granted: 1966-08-02
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Expires: 1982-04-04
Abstract
No abstract record available.
Inventors
- 👤 William H Jones
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 05:51
CPC Classifications
H; H01; H01J; H01J17/00; H01J17/38; H01J17/48; H01J17/49; H01J17/492; H01B; H01B1/00; Y; Y10; Y10S; Y10S428/00; Y10S428/922; Y10S428/923; Y10S428/924; Y10S428/926; Y10S428/9335; Y10S428/934; Y10S428/935; Y10S428/938; Y10T; Y10T428/00; Y10T428/12; Y10T428/12493; Y10T428/12535; Y10T428/12597; Y10T428/12736; Y10T428/1275; Y10T428/12757; Y10T428/12771; Y10T428/12861; Y10T428/12903; Y10T428/1291; Y10T428/12944; Y10T428/26; Y10T428/263; Y10T428/264; Y10T428/265
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
57 words
A THIN FILM, ELECTRON-EMISSIVE ELECTRODE WITH GOOD ADHERENCE CHARACTERISTICS ON AN INSULATING BASE COMPRISING: A GLASS SUBSTRATE, A FIRST THIN FILM LAYER OF A BERYLLIUM-COPPER ALLOY CONTAINING FROM ABOUT 0.3 TO ABOUT 10 WEIGHT PERCENT BERYLLIUM, DEPOSITED ON SAID SUBSTRATE, AND A SECOND THIN FILM LAYER OF AN ELECTRON-EMISSIVE IRON AND NICKEL COMPOSITION CONTAINING FROM ABOUT 33
Claim 2
Dependent Claim
57 words
A THIN FILM, ELECTRON-EMISSIVE ELECTRODE WITH GOOD ADHERENCE CHARACTERISTICS ON AN INSULATING BASE COMPRISING: A GLASS SUBSTRATE, A FIRST THIN FILM LAYER OF A BERYLLIUM-COPPER ALLOY CONTAINING FROM ABOUT 0.3 TO ABOUT 10 WEIGHT PERCENT BERYLLIUM, DEPOSITED ON SAID SUBSTRATE, AND A SECOND THIN FILM LAYER OF AN ELECTRON-EMISSIVE IRON AND NICKEL COMPOSITION CONTAINING FROM ABOUT 33
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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) | 1969-08-01 | 1970-01-31 | 1970-08-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-08-01 | 1974-01-31 | 1974-08-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-08-01 | 1978-01-31 | 1978-08-02 | $7700.00 | Window Closed / Lapsed |