US3584253A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Getter structure for electrical discharge and method of making the same
Assignee: Siemens AG
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Filing: 1969-03-26
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Granted: 1971-06-08
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Expires: 1989-03-26
Abstract
Abstract A nonevaporating getter, which is optionally heatable in operation within an electron discharge vessel, in which the getter material contains at least one metal selected from the group consisting of Zr, Ta, Hf, Nb, Ti, Th and U, and is disposed directly on the insulating layer of the heating means, eliminating the use of an open metal vessel or the like for the getter material.
Inventors
- 👤 Manfred Wintzer
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 01:05
CPC Classifications
H; H01; H01J; H01J7/00; H01J7/14; H01J7/18; H01J7/186
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
42 words
A method according to claim 1, comprising applying the getter material to the insulating layer of the heating means by dipping the latter into an alcoholic suspension of getter metal and carbon powders, and thereafter subjecting the same to said heat treatment.
Claim 2
Dependent Claim
38 words
A method according to claim 1, wherein a dry powder mixture of getter metal and carbon is pressed within a pressing die at low pressure to form said coating, and thereafter subjecting the same to said heat treatment.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1974-06-07 | 1974-12-07 | 1975-06-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-06-07 | 1978-12-07 | 1979-06-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-06-07 | 1982-12-07 | 1983-06-08 | $7700.00 | Window Closed / Lapsed |