US2575392A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of annealing a selenium coating
Assignee: Vickers Inc
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Filing: 1947-12-11
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Granted: 1951-11-20
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Expires: 1967-12-11
Abstract
No abstract record available.
Inventors
- 👤 Carl E Peters
- 👤 David W Rau
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 03:43
CPC Classifications
H; H10; H10D; H10D48/00; H10D48/01; H10D48/04; H10D48/043; H10D48/044; H10P; H10P14/00; H10P14/20; H10P14/22; H10P14/34; H10P14/3402; H10P14/38; H10P14/3802
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
91 words
THE METHOD OF ANNEALING A COATING OF SELENIUM TO RENDER THE SIZE OF THE SELENIUM CRYSTALS IN SAID COATING MORE UNIFORM, AS BY REDUCING THE SIZE OF LARGE CRYSTALS, THAT COMPRISES HEATING SAID SELENIUM COATING ABOVE THE MELTING POINT OF SELENIUM TO A TEMPERATURE BETWEEN TWO HUNDRED EIGHTEEN DEGREES CENTIGRADE AND TWO HUNDRED NINETEEN AND SEVEN TENTHS DEGREES CENTIGRADE, MAINTAINING SAIS SELENIUM COATING AT SAID TEMPERATURE FOR A PERIOD OF FROM NINE TO FIVE MINUTES, AND COOLING SAID SELENIUM COATING TO PROVIDE RECRYSTALLIZATION OF THE MELTED PORTIONS OF SAID SELENIUM COATING.
Claim 2
Independent Claim
91 words
THE METHOD OF ANNEALING A COATING OF SELENIUM TO RENDER THE SIZE OF THE SELENIUM CRYSTALS IN SAID COATING MORE UNIFORM, AS BY REDUCING THE SIZE OF LARGE CRYSTALS, THAT COMPRISES HEATING SAID SELENIUM COATING ABOVE THE MELTING POINT OF SELENIUM TO A TEMPERATURE BETWEEN TWO HUNDRED EIGHTEEN DEGREES CENTIGRADE AND TWO HUNDRED NINETEEN AND SEVEN TENTHS DEGREES CENTIGRADE, MAINTAINING SAIS SELENIUM COATING AT SAID TEMPERATURE FOR A PERIOD OF FROM NINE TO FIVE MINUTES, AND COOLING SAID SELENIUM COATING TO PROVIDE RECRYSTALLIZATION OF THE MELTED PORTIONS OF SAID SELENIUM COATING.
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) | 1954-11-19 | 1955-05-21 | 1955-11-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1958-11-19 | 1959-05-21 | 1959-11-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1962-11-19 | 1963-05-21 | 1963-11-20 | $7700.00 | Window Closed / Lapsed |