US2887633A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Titanium-dioxide rectifiers
Assignee: Individual
•
Filing: 1955-06-09
•
Granted: 1959-05-19
•
Expires: 1975-06-09
Abstract
No abstract record available.
Inventors
- 👤 Theodore S Shilliday
- 👤 Charles S Peet
- 👤 Arthur E Middleton
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 11:49
CPC Classifications
H; H10; H10D; H10D62/00; H10D62/80; H10D48/00; H10D48/30; H10D99/00; H10P; H10P10/00; H10P95/00; H10P95/80
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
22 words
A RECTIFIER COMPRISING: A TITANIUM DIOXSIDE SEMICONDUCTOR AND A SILICON MONOXIDE ARTIFICIAL-BARRIER LAYER IN CONTACTING RELATIONSHIP BETWEEN THE SEMICONDUCTOR AND A COUNTERELECTRODE.
Claim 2
Dependent Claim
22 words
A RECTIFIER COMPRISING: A TITANIUM DIOXSIDE SEMICONDUCTOR AND A SILICON MONOXIDE ARTIFICIAL-BARRIER LAYER IN CONTACTING RELATIONSHIP BETWEEN THE SEMICONDUCTOR AND A COUNTERELECTRODE.
References Cited (Backward Citations)
US2692212A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1962-05-18 | 1962-11-17 | 1963-05-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-05-18 | 1966-11-17 | 1967-05-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-05-18 | 1970-11-17 | 1971-05-19 | $7700.00 | Window Closed / Lapsed |