US3056061A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of manufacturing nickel supports for oxide cathodes and cathodes provided with such supports
Assignee: US Philips Corp
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Filing: 1960-01-18
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Granted: 1962-09-25
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Expires: 1980-01-18
Abstract
No abstract record available.
Inventors
- 👤 Melsert Hans
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 16:20
CPC Classifications
H; H01; H01J; H01J1/00; H01J1/02; H01J1/13; H01J1/20; H01J1/26; H01J9/00; H01J9/02; H01J9/04
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
66 words
A NICKEL SUPPORT CONTAINING MAGNESIUM AS AN IMPURITY FOR SUPPORTING AN ELECTRON EMISSIVE LAYER OF AN OXIDE-COATED CATHODE COMPRISING A FIRST SURFACE FOR SUPPORT OF AN ALKALINE EARTH OXIDE, AND A SECOND LATERAL SURFACE DISPOSED A PREDETERMINED DISTANCE FROM SAID FIRST SURFACE, A SUBSTANTIAL PORTION OF THE MAGNESIUM BEING BOUND ADJACENT TO SAID SECOND SURFACE AND THE REMAINING PORTION THEREOF FREE ADJACENT TO SAID FIRST SURFACE.
References Cited (Backward Citations)
US2778970A
Cited
US2912611A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1965-09-24 | 1966-03-26 | 1966-09-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-09-24 | 1970-03-26 | 1970-09-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-09-24 | 1974-03-26 | 1974-09-25 | $7700.00 | Window Closed / Lapsed |