Patent US5262852A successfully refreshed from Google Patents.
Patent US3016472A successfully refreshed from Google Patents.
US3016472A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Dispenser cathode
Assignee: General Electric Co
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Filing: 1960-05-25
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Granted: 1962-01-09
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Expires: 1980-05-25
Abstract
No abstract record available.
Inventors
- 👤 Patrick P Coppola
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 09:58
CPC Classifications
H; H01; H01J; H01J1/00; H01J1/02; H01J1/13; H01J1/20; H01J1/28
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
154 words
A DISPENSER CATHODE COMPRISING AN EMISSION MATERIAL RESERVOIR INCLUDING A FIRST INGREDIENT CONSISTING OF AT LEAST ONE OXIDIZING COMPOUND OF AN ELECTROPOSITIVE ELEMENT SELECTED FROM THE GROUP CONSISTING OF A RARE EARTHS, ALKALINE EARTH METALS AND ALKALI METALS, A REDUCING INGREDIENT ARRANGED IN CHEMICALLY REACTABLE RELATION WITH AT LEAST A PORTION OF SAID FIRST INGREDIENT WHEREBY AT LEAST A PORTION OF SAID FIRST INGREDIENT IS REDUCIBLE TO THE ELECTROPOSITIVE ELEMEMT AND ELECTROPOSITIVE ELEMENT OXIDE CONSTITUENTS THEREOF, AN EMISSION SUBSTRATE MEMBER INCLUDING A CONSTITUENT PROMOTING ADSORPTION-COUPLED MIGRATION ON AN EXPOSED SURFACE THEREOF OF A MONLAYER OF SAID ELECTROPOSITIVE ELEMENTS AND ELECTROPOSITIVE ELEMENT OXIDES OF SAID RESERVOIR, SAID EXPOSED SURFACCE OF SAID EMISSION SUBSTRATE MEMBER DEFINING A EMISSION SURFACE, SAID MIGRATION-PROMOTING CONSTITUENT OF SAID SUBSTRATE MEMBER BEING CHEMICALLY REACTIVE WITH THE FIRST INGREDIENT OF SAID RESERVOIR CONTACTED BY SAID MIGRATION-PROMOTING CONSTITUENT IN A MANNER SUBSTANTIALLY ENTIRELY DEPLETIVE OF THE ELECTROPOSITIVE ELEMENTS AND ELECTROPOSITIVE OXIDES IN THE
Claim 2
Dependent Claim
154 words
A DISPENSER CATHODE COMPRISING AN EMISSION MATERIAL RESERVOIR INCLUDING A FIRST INGREDIENT CONSISTING OF AT LEAST ONE OXIDIZING COMPOUND OF AN ELECTROPOSITIVE ELEMENT SELECTED FROM THE GROUP CONSISTING OF A RARE EARTHS, ALKALINE EARTH METALS AND ALKALI METALS, A REDUCING INGREDIENT ARRANGED IN CHEMICALLY REACTABLE RELATION WITH AT LEAST A PORTION OF SAID FIRST INGREDIENT WHEREBY AT LEAST A PORTION OF SAID FIRST INGREDIENT IS REDUCIBLE TO THE ELECTROPOSITIVE ELEMEMT AND ELECTROPOSITIVE ELEMENT OXIDE CONSTITUENTS THEREOF, AN EMISSION SUBSTRATE MEMBER INCLUDING A CONSTITUENT PROMOTING ADSORPTION-COUPLED MIGRATION ON AN EXPOSED SURFACE THEREOF OF A MONLAYER OF SAID ELECTROPOSITIVE ELEMENTS AND ELECTROPOSITIVE ELEMENT OXIDES OF SAID RESERVOIR, SAID EXPOSED SURFACCE OF SAID EMISSION SUBSTRATE MEMBER DEFINING A EMISSION SURFACE, SAID MIGRATION-PROMOTING CONSTITUENT OF SAID SUBSTRATE MEMBER BEING CHEMICALLY REACTIVE WITH THE FIRST INGREDIENT OF SAID RESERVOIR CONTACTED BY SAID MIGRATION-PROMOTING CONSTITUENT IN A MANNER SUBSTANTIALLY ENTIRELY DEPLETIVE OF THE ELECTROPOSITIVE ELEMENTS AND ELECTROPOSITIVE OXIDES IN THE
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) | 1965-01-08 | 1965-07-10 | 1966-01-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-01-08 | 1969-07-10 | 1970-01-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-01-08 | 1973-07-10 | 1974-01-09 | $7700.00 | Window Closed / Lapsed |