US2948607A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Tantalum-titanium getter element
Assignee: Union Carbide Corp
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Filing: 1957-10-25
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Granted: 1960-08-09
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Expires: 1977-10-25
Abstract
No abstract record available.
Inventors
- 👤 Johann C S Wagener
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 19:53
CPC Classifications
H; H01; H01J; H01J41/00; H01J41/12; C; C22; C22C; C22C14/00; C22C27/00; C22C27/02; H01J7/00; H01J7/14; H01J7/18; H01J7/183
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
101 words
AN EVACUATED VESSEL HAVING MOUNTED THEREIN A GETTER ELEMENT COMPOSED OF A BINARY ALLOY OF TITANIUM AND TANTALUM, THE TITANIUM CONSTITUENT OF SAID ALLOY BEING THE EFFECTIVE GETTERING AGENT OF SAID ELEMENT, THE TANTALUM CONSTITUENT OF SAID ALLOY SERVING TO PREVENT COLLAPSE OF SAID ELEMENT WHEN THE SAME IS HEATED TO THE SUBLIMATION TEMPERATURE OF TITANIUM, SAID TEMPERATURE BEING ABOVE THE MELTING POINT OF TITANIUM BUT BELOW THE MELTING POINT OF SAID ALLOY WHEREBY SAID ELEMENT IS EFFECTIVE TO PROVIDE AN ACTIVE DEPOSIT OF TITANIUM UPON THE SURFACE OF SAID VESSEL, SAID ALLOY CONTAINING 5% TO 75% TITANIUM, THE REMAINDER TANTALUM.
Claim 2
Dependent Claim
101 words
AN EVACUATED VESSEL HAVING MOUNTED THEREIN A GETTER ELEMENT COMPOSED OF A BINARY ALLOY OF TITANIUM AND TANTALUM, THE TITANIUM CONSTITUENT OF SAID ALLOY BEING THE EFFECTIVE GETTERING AGENT OF SAID ELEMENT, THE TANTALUM CONSTITUENT OF SAID ALLOY SERVING TO PREVENT COLLAPSE OF SAID ELEMENT WHEN THE SAME IS HEATED TO THE SUBLIMATION TEMPERATURE OF TITANIUM, SAID TEMPERATURE BEING ABOVE THE MELTING POINT OF TITANIUM BUT BELOW THE MELTING POINT OF SAID ALLOY WHEREBY SAID ELEMENT IS EFFECTIVE TO PROVIDE AN ACTIVE DEPOSIT OF TITANIUM UPON THE SURFACE OF SAID VESSEL, SAID ALLOY CONTAINING 5% TO 75% TITANIUM, THE REMAINDER TANTALUM.
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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) | 1963-08-09 | 1964-02-08 | 1964-08-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-08-09 | 1968-02-08 | 1968-08-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-08-09 | 1972-02-08 | 1972-08-09 | $7700.00 | Window Closed / Lapsed |