Patent US3579459A successfully refreshed from Google Patents.
US3579459A
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US
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Metal vapor generating compositions
Assignee: SAES Getters SpA
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Filing: 1967-12-13
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Granted: 1971-05-18
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Expires: 1987-12-13
Abstract
Abstract (A) AN OPEN SITERED MATRIX OF A SINTERIZABLE MATERIAL IN A VACUUM RELEASES A METAL VAPOR. THE STRUCTURE COMPRISES (A) AN OPEN SINTERED MATRIX OF SINITERIZABLE MATERIAL AND, (B) A MIXTURE, FIXEDLY HELD WITHIN THE SINTERED MATRIX, SAID MIXTURE COMPRISING: (1) A COMPOUND OF A METAL SELECTED FROM THE GROUP CONSISTING OF MERCURY AND THE ALKALI METALS SAID COMPOUND BEING REDUCIBLE TO ITS METAL, AND, (2) A STOICHIOMETRIC EXCESS OF A REDUCING AGENT FOR SAID COMPOUND. DEVICES EMPLOYING THESE COMPOSITE STRUCTURES AND PROCESSES FOR PRODUCING THESE STRUCTURES.
Inventors
- 👤 Paolo Della Porta
- 👤 Elio Rabusin
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 11:33
CPC Classifications
H; H01; H01J; H01J17/00; H01J17/02; H01J17/22; H01J17/26; H01J5/00; H01J5/02; H01J5/08; H01J7/00; H01J7/14; H01J7/18
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1974-05-17 | 1974-11-16 | 1975-05-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-05-17 | 1978-11-16 | 1979-05-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-05-17 | 1982-11-16 | 1983-05-18 | $7700.00 | Window Closed / Lapsed |