US2960475A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Thorium-containing getters for electric discharge tubes
Assignee: US Philips Corp
•
Filing: 1958-12-29
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Granted: 1960-11-15
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Expires: 1978-12-29
Abstract
No abstract record available.
Inventors
- 👤 Baronetzky Egon Otto Michael
- 👤 Johannes Hendrikus Nicol Vucht
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 15:36
CPC Classifications
H; H01; H01J; H01J7/00; H01J7/14; H01J7/18; H01J7/183; C; C22; C22C; C22C43/00
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
46 words
AS A GETTER FOR AN ELECTRIC DISCHARGE TUBE, A MIXTURE HAVING THE GROSS COMPOSITION TH16A1MMN, IN WHICH M IS A METAL SELECTED FROM THE GROUP CONSISTING OF SILVER, GOLD, COPPER AND PALLADUIM, AND IN WHICH M AND N ARE AT LEAST EQUAL TO 1 AND M+N=8.
Claim 2
Dependent Claim
46 words
AS A GETTER FOR AN ELECTRIC DISCHARGE TUBE, A MIXTURE HAVING THE GROSS COMPOSITION TH16A1MMN, IN WHICH M IS A METAL SELECTED FROM THE GROUP CONSISTING OF SILVER, GOLD, COPPER AND PALLADUIM, AND IN WHICH M AND N ARE AT LEAST EQUAL TO 1 AND M+N=8.
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) | 1963-11-15 | 1964-05-16 | 1964-11-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-11-15 | 1968-05-16 | 1968-11-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-11-15 | 1972-05-16 | 1972-11-15 | $7700.00 | Window Closed / Lapsed |