US2885309A
Expired / Lapsed
US
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Method of tempering selenium layers for selenium rectifiers and product
Assignee: Licentia Patent Verwaltungs GmbH
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Filing: 1955-05-23
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Granted: 1959-05-05
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Expires: 1975-05-23
Abstract
No abstract record available.
Inventors
- 👤 Brunke Ilse Irmgard
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 18:45
CPC Classifications
H; H10; H10D; H10D48/00; H10D48/01; H10D48/04; H10D48/043; H10D48/044; H10P; H10P14/00; H10P14/20; H10P14/34; H10P14/3402; H10P14/38; H10P14/3802
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
82 words
A METHOD OF TEMPERING THE SELENIUM LAYER FOR A SELENIUM RECITIFIER BY TEMPERING THE SELENIUM LAYER DEPOSITED IN CRYSTALLINE FROM UPON A BASE ELECTRODE, AT A TEMPERATURE BETWEEM 150*C. AND THE MELTING POINT OF CRYSTALLINE SELENIUM, COMPRISING THE STEPS OF FIRST HEATING SAID SELENIUM LAYER TO A TEMPERATURE BETWEEN 180 AND 200*C. SO AS TO SUBSTANTIALLY COMPLETELY TRANSFORM THE CRYSTALLITEIS IN SAID CRYSTALLINE COMPLETELY TRANSFORM THE HEATING SAID SELENIUM LAYER FOR AT LEAST 10 MINUATES TO A TEMPERATURE BETWEEN 200 AND 220*C.
Claim 2
Independent Claim
82 words
A METHOD OF TEMPERING THE SELENIUM LAYER FOR A SELENIUM RECITIFIER BY TEMPERING THE SELENIUM LAYER DEPOSITED IN CRYSTALLINE FROM UPON A BASE ELECTRODE, AT A TEMPERATURE BETWEEM 150*C. AND THE MELTING POINT OF CRYSTALLINE SELENIUM, COMPRISING THE STEPS OF FIRST HEATING SAID SELENIUM LAYER TO A TEMPERATURE BETWEEN 180 AND 200*C. SO AS TO SUBSTANTIALLY COMPLETELY TRANSFORM THE CRYSTALLITEIS IN SAID CRYSTALLINE COMPLETELY TRANSFORM THE HEATING SAID SELENIUM LAYER FOR AT LEAST 10 MINUATES TO A TEMPERATURE BETWEEN 200 AND 220*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) | 1962-05-04 | 1962-11-03 | 1963-05-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-05-04 | 1966-11-03 | 1967-05-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-05-04 | 1970-11-03 | 1971-05-05 | $7700.00 | Window Closed / Lapsed |