US2892136A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Rectifier with multiple barrier layers
Assignee: Infineon Technologies Americas Corp
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Filing: 1957-09-09
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Granted: 1959-06-23
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Expires: 1977-09-09
Abstract
No abstract record available.
Inventors
- 👤 Charles A Escoffery
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 11:50
CPC Classifications
H; H10; H10D; H10D48/00; H10D48/01; H10D48/04; H10D48/043; H10D48/046; H10P; H10P14/00; H10P14/20; H10P14/22; H10P14/34; H10P14/3402; H10P14/38; H10P14/3802
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
37 words
A DRY PLATE RECTIFIER COMPRISING: A METAL BASE PLATE; A LAYER COMPRISING SELENIUM APPLIED TO SAID BASE PLATE; A FIRST BARRIER LAYER APPLIED OVER AND ADHERENT TO SAID SELENIUM; A SECOND BARRRIER LAYER APPLIED OVER AND ADHE
Claim 2
Dependent Claim
37 words
A DRY PLATE RECTIFIER COMPRISING: A METAL BASE PLATE; A LAYER COMPRISING SELENIUM APPLIED TO SAID BASE PLATE; A FIRST BARRIER LAYER APPLIED OVER AND ADHERENT TO SAID SELENIUM; A SECOND BARRRIER LAYER APPLIED OVER AND ADHE
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) | 1962-06-22 | 1962-12-22 | 1963-06-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-06-22 | 1966-12-22 | 1967-06-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-06-22 | 1970-12-22 | 1971-06-23 | $7700.00 | Window Closed / Lapsed |