US2629039A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Selenium cell and process for manufacturing the same
Assignee: Weston Electric Instrument Corp
•
Filing: 1950-06-07
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Granted: 1953-02-17
•
Expires: 1970-06-07
Abstract
No abstract record available.
Inventors
- 👤 George H Shoemaker
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 03:13
CPC Classifications
H; H10; H10D; H10D48/00; H10D48/01; H10D48/04; H10D48/043; H10P; H10P14/00; H10P14/20; H10P14/29; H10P14/2901; H10P14/2923; H10P14/32; H10P14/3202; H10P14/3241; H10P14/34; H10P14/3402; H10P14/38; H10P14/3802; Y; Y10; Y10T; Y10T29/00; Y10T29/49; Y10T29/49002; Y10T29/49082; Y10T29/49099
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
86 words
IN THE MANUFACTURE OF SELENIUM CELL, THE PROCESS WHICH COMPRISES APPLYING AMORPHOUS SELENIUM TO AN ELECTRODE, AND CONVERTING THE AMORPHOUS SELENIUM TO CRYSTALLINE SELENIUM BY THE STEPS OF HEATING THE SELENIUM-ELECTRODE ASSEMBLY QUICKLY TO A TEMPERATURE OF THE ORDER OF 180* TO 200* C., SUBSTANTIALLY IMMEDIATELY IMPOSING UPON THE SO-HEATED SELENIUM-ELECTRODE ASSEMBLY AN INITIAL MOLDING PRESSURE SUFFICIENT TO RENDER THE SELENIUM MOMENTARILY FLUENT AT THE EXISTING TEMPERATURE, AND INCREASING THE PRESSURE ON THE SO-HEATED SELENIUM-ELECTRODE ASSEMBLY AS THE VOLUME OF THE SELENIUM CONTRACTS WITH PROGRESSIVE CRYSTALLIZATION.
Claim 2
Dependent Claim
86 words
IN THE MANUFACTURE OF SELENIUM CELL, THE PROCESS WHICH COMPRISES APPLYING AMORPHOUS SELENIUM TO AN ELECTRODE, AND CONVERTING THE AMORPHOUS SELENIUM TO CRYSTALLINE SELENIUM BY THE STEPS OF HEATING THE SELENIUM-ELECTRODE ASSEMBLY QUICKLY TO A TEMPERATURE OF THE ORDER OF 180* TO 200* C., SUBSTANTIALLY IMMEDIATELY IMPOSING UPON THE SO-HEATED SELENIUM-ELECTRODE ASSEMBLY AN INITIAL MOLDING PRESSURE SUFFICIENT TO RENDER THE SELENIUM MOMENTARILY FLUENT AT THE EXISTING TEMPERATURE, AND INCREASING THE PRESSURE ON THE SO-HEATED SELENIUM-ELECTRODE ASSEMBLY AS THE VOLUME OF THE SELENIUM CONTRACTS WITH PROGRESSIVE CRYSTALLIZATION.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1956-02-17 | 1956-08-18 | 1957-02-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1960-02-17 | 1960-08-18 | 1961-02-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1964-02-17 | 1964-08-18 | 1965-02-17 | $7700.00 | Window Closed / Lapsed |