Patent US3309302A successfully refreshed from Google Patents.
US3309302A
Expired / Lapsed
US
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Method of preparing an electron tube including sputtering a suboxide of titanium on dielectric components thereof
Assignee: Varian Medical Systems Inc
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Filing: 1963-10-07
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Granted: 1967-03-14
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Expires: 1983-10-07
Abstract
No abstract record available.
Inventors
- 👤 Heil Oskar
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 15:13
CPC Classifications
H; H01; H01J; H01J37/00; H01J37/32; H01J37/34
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
48 words
IN THE MANUFACTURE OF AN ELECTRON TUBE HAVING A DIELECTRIC BODY AND IN WHICH OPERATION OF THE TUBE CAUSES THE SURFACE OF THE DIELECTRIC BODY TO BE BOMBARDED BY ELECTRONS, THE IMPROVEMENT COMPRISING THE STEPS OF SPUTTERING ONTO SAID SURFACE A DOTTED COATING OF A SUBOXIDE OF TITANIUM.
Claim 2
Dependent Claim
48 words
IN THE MANUFACTURE OF AN ELECTRON TUBE HAVING A DIELECTRIC BODY AND IN WHICH OPERATION OF THE TUBE CAUSES THE SURFACE OF THE DIELECTRIC BODY TO BE BOMBARDED BY ELECTRONS, THE IMPROVEMENT COMPRISING THE STEPS OF SPUTTERING ONTO SAID SURFACE A DOTTED COATING OF A SUBOXIDE OF TITANIUM.
References Cited (Backward Citations)
US2233917A
Cited
US2513241A
Cited
US2883305A
Cited
US3050651A
Cited
US3057795A
Cited
US3021271A
Cited
US3259558A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1970-03-13 | 1970-09-12 | 1971-03-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-03-13 | 1974-09-12 | 1975-03-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-03-13 | 1978-09-12 | 1979-03-14 | $7700.00 | Window Closed / Lapsed |