Patent US3391309A successfully refreshed from Google Patents.
US3391309A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Solid state cathode
Assignee: Melpar Inc
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Filing: 1963-07-15
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Granted: 1968-07-02
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Expires: 1983-07-15
Abstract
No abstract record available.
Inventors
- 👤 Hacskaylo Michael
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 08:36
CPC Classifications
B; B82; B82Y; B82Y10/00; H; H01; H01J; H01J1/00; H01J1/02; H01J1/30; H01J1/312; H10; H10D; H10D99/00
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
45 words
A SOLID STATE CATHODE, COMPRISING A LAYER OF PURE METAL SELECTED FROM THE GROUP ALUMINUM, CHROMIUM, TITANIUM AND MAGNESIUM, AND TWO SUPERPOSED CONTIGUOUS THIN FILMS RESPECTIVELY OF AN N-TYPE SEMICONDUCTIVE OXIDE OF SAID METAL CONTIGUOUS TO SAID LAYER AND AN INSULATIVE OXIDE OF SAID METAL
Claim 2
Dependent Claim
45 words
A SOLID STATE CATHODE, COMPRISING A LAYER OF PURE METAL SELECTED FROM THE GROUP ALUMINUM, CHROMIUM, TITANIUM AND MAGNESIUM, AND TWO SUPERPOSED CONTIGUOUS THIN FILMS RESPECTIVELY OF AN N-TYPE SEMICONDUCTIVE OXIDE OF SAID METAL CONTIGUOUS TO SAID LAYER AND AN INSULATIVE OXIDE OF SAID METAL
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) | 1971-07-02 | 1972-01-01 | 1972-07-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-07-02 | 1976-01-01 | 1976-07-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-07-02 | 1980-01-01 | 1980-07-02 | $7700.00 | Window Closed / Lapsed |