US2697188A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Selenium rectifier
Assignee: —
•
Filing: —
•
Granted: 1954-12-14
•
Expires: 1971-12-14
Abstract
No abstract record available.
Inventors
No inventors recorded.
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 20:30
CPC Classifications
H; H10; H10D; H10D64/00; H10D64/20; H10D64/23; H10W; H10W90/00
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
60 words
A CURRENT RECTIFIER COMPRISING A PLURALITY OF RECTIFYING UNITS SUPERIMPOSED ON THE SURFACE OF A NON-CONDUCTIVE MATERIAL HAVING A CORRUGATED CROSS SECTION, EACH OF SAID RECTIFYING UNITS COMPRISING A FILM OF BASE PLATE MATERIAL IMMEDIATELY ADJACENT SAID NON-CONDUCTIVE MATERIAL, SELENIUM FILMS ADJACENT TO SAID BASE PLATE MATERIAL AND SUPERIMPOSED THEREON, AND A COUNTERELECTRODE ADJACENT EACH SELENIUM FILM AND SUPERIMPOSED THEREON.
Claim 2
Dependent Claim
60 words
A CURRENT RECTIFIER COMPRISING A PLURALITY OF RECTIFYING UNITS SUPERIMPOSED ON THE SURFACE OF A NON-CONDUCTIVE MATERIAL HAVING A CORRUGATED CROSS SECTION, EACH OF SAID RECTIFYING UNITS COMPRISING A FILM OF BASE PLATE MATERIAL IMMEDIATELY ADJACENT SAID NON-CONDUCTIVE MATERIAL, SELENIUM FILMS ADJACENT TO SAID BASE PLATE MATERIAL AND SUPERIMPOSED THEREON, AND A COUNTERELECTRODE ADJACENT EACH SELENIUM FILM AND SUPERIMPOSED THEREON.
References Cited (Backward Citations)
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Cited
US2510588A
Cited
US2597000A
Cited
US2428537A
Cited
US2486110A
Cited
US2498714A
Cited
US2556991A
Cited
US2498890A
Cited
US2457138A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1957-12-13 | 1958-06-14 | 1958-12-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1961-12-13 | 1962-06-14 | 1962-12-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1965-12-13 | 1966-06-14 | 1966-12-14 | $7700.00 | Window Closed / Lapsed |