US2749596A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of making titanium dioxide rectifiers
Assignee: Individual
•
Filing: 1952-01-04
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Granted: 1956-06-12
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Expires: 1972-01-04
Abstract
No abstract record available.
Inventors
- 👤 Robert G Breckenridge
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 22:13
CPC Classifications
C; C23; C23C; C23C8/00; C23C8/06; C23C8/08; C23C8/10; C23C8/16; H; H10; H10P; H10P95/00; Y; Y10; Y10S; Y10S205/00; Y10S205/917
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
87 words
THE METHOD OF PRODUCING A TITANIUM DIOXIDE RECTIFIER COMPRISING THE STEPS OF APPLYING A SURFACE OF TITANIUM ON A BASE PLATE TO ACT AS THE BASE ELECTRODE, HEATING THE TITANIUM IN AN ATMOSPHERE OF LIVE STREAM TO FORM A LAYER OF TITANIUM DIOXIDE, WHICH CONTAINS TRIVALENT TITANIUM IONS, ON THE TITANIUM BASE ELECTRODE, AND APPLYING A COUNTERELECTRODE TO THE OXIDE LAYER, SAID HEATING TAKING PLACE WITHIN A RANGE OF TIMES AND TEMPERATURES FROM 1 1/2 HOURS AT 750 DEGREES C. TO 4 HOURS AT 550 DEGREES C.
Claim 2
Independent Claim
87 words
THE METHOD OF PRODUCING A TITANIUM DIOXIDE RECTIFIER COMPRISING THE STEPS OF APPLYING A SURFACE OF TITANIUM ON A BASE PLATE TO ACT AS THE BASE ELECTRODE, HEATING THE TITANIUM IN AN ATMOSPHERE OF LIVE STREAM TO FORM A LAYER OF TITANIUM DIOXIDE, WHICH CONTAINS TRIVALENT TITANIUM IONS, ON THE TITANIUM BASE ELECTRODE, AND APPLYING A COUNTERELECTRODE TO THE OXIDE LAYER, SAID HEATING TAKING PLACE WITHIN A RANGE OF TIMES AND TEMPERATURES FROM 1 1/2 HOURS AT 750 DEGREES C. TO 4 HOURS AT 550 DEGREES C.
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) | 1959-06-12 | 1959-12-12 | 1960-06-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1963-06-12 | 1963-12-12 | 1964-06-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1967-06-12 | 1967-12-12 | 1968-06-12 | $7700.00 | Window Closed / Lapsed |