US2766508A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Blocking layer for titanium oxide rectifier
Assignee: General Electric Co
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Filing: 1952-05-22
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Granted: 1956-10-16
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Expires: 1972-05-22
Abstract
No abstract record available.
Inventors
- 👤 Loup Theodore E Le
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 05:19
CPC Classifications
H; H10; H10P; H10P10/00; B; B24; B24B; B24B7/00; B24B7/10; B24B7/16; H10D; H10D62/00; H10D62/80; H10D62/875; H10P95/00; Y; Y10; Y10T; Y10T29/00; Y10T29/43
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
58 words
THE METHOD OF PREPARING A TITANIUM DIOXIDE RECTIFIER WHICH COMPRISES FORMING A PARTIALLY OXIDIZED LAYER ON A SURFACE OF A TITANIUM PLATE BY HEATING SAID PLATE IN AN ATMOSPHERE CONTAINING OXYGEN, FORMING A LAYER OF OXIDE ON SAID PARTIALLY OXIDIZED SURFACE BY ELECTROLYTIC ANODIZATION AND APPLYING TO SAID OXIDE LAYER A COUNTERELECTRODE METAL HAVING A HIGH WORK FUNCTION.
Claim 2
Independent Claim
58 words
THE METHOD OF PREPARING A TITANIUM DIOXIDE RECTIFIER WHICH COMPRISES FORMING A PARTIALLY OXIDIZED LAYER ON A SURFACE OF A TITANIUM PLATE BY HEATING SAID PLATE IN AN ATMOSPHERE CONTAINING OXYGEN, FORMING A LAYER OF OXIDE ON SAID PARTIALLY OXIDIZED SURFACE BY ELECTROLYTIC ANODIZATION AND APPLYING TO SAID OXIDE LAYER A COUNTERELECTRODE METAL HAVING A HIGH WORK FUNCTION.
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) | 1959-10-16 | 1960-04-16 | 1960-10-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1963-10-16 | 1964-04-16 | 1964-10-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1967-10-16 | 1968-04-16 | 1968-10-16 | $7700.00 | Window Closed / Lapsed |