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US3082174A
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Method of manufacturing a non-evaporating getter and getter made by this method
Assignee: NORTH AMERICAN PHILLIPS COMPAN
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Filing: 1960-11-10
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Granted: 1963-03-19
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Expires: 1980-11-10
Abstract
No abstract record available.
Inventors
- 👤 Perdijk Hendrik Joha Reinierus
- 👤 Stouten Jacobus Joann Nicolaas
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 11:51
CPC Classifications
H; H01; H01J; H01J7/00; H01J7/14; H01J7/18; H01J7/183; H01J17/00; H01J17/02; H01J17/22; H01J17/24
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
96 words
A NON-EVAPORATING GETTER FOR AN ELECTRIC DISCHARGE TUBE CONSISTING ESSENTIALLY OF A COMPACT BODY CONSTITUTED OF GRANULES HAVING AN AVERAGE DIAMETER OF ABOUT 0.1 TO 0.5 MM., EACH OF SAID GRANULES BEING COMPOSED OF A MIXTURE OF A HYDRIDE OF A GETTER METAL SELECTED FROM THE GROUP CONSISTING OF ZIRCONIUM, HAFNIUM, TITANIUM AND ALLOYS THEREOF IN FINELY-DIVIDED FORM HAVING A PARTICLE SIZE LESS THAN ABOUT 5U, AND TUNGSTEN HAVING A PARTICLE SIZE SMALLER THAN THAT OF THE GETTER METAL HYDRIDE, THE GETTERTYPE METAL HYDRIDE AND THE TUNGSTEN BEING PRESENT IN A WEIGHT RATIO OF ABOUT 2:3.
Claim 2
Dependent Claim
96 words
A NON-EVAPORATING GETTER FOR AN ELECTRIC DISCHARGE TUBE CONSISTING ESSENTIALLY OF A COMPACT BODY CONSTITUTED OF GRANULES HAVING AN AVERAGE DIAMETER OF ABOUT 0.1 TO 0.5 MM., EACH OF SAID GRANULES BEING COMPOSED OF A MIXTURE OF A HYDRIDE OF A GETTER METAL SELECTED FROM THE GROUP CONSISTING OF ZIRCONIUM, HAFNIUM, TITANIUM AND ALLOYS THEREOF IN FINELY-DIVIDED FORM HAVING A PARTICLE SIZE LESS THAN ABOUT 5U, AND TUNGSTEN HAVING A PARTICLE SIZE SMALLER THAN THAT OF THE GETTER METAL HYDRIDE, THE GETTERTYPE METAL HYDRIDE AND THE TUNGSTEN BEING PRESENT IN A WEIGHT RATIO OF ABOUT 2:3.
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) | 1966-03-18 | 1966-09-17 | 1967-03-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-03-18 | 1970-09-17 | 1971-03-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-03-18 | 1974-09-17 | 1975-03-19 | $7700.00 | Window Closed / Lapsed |