Patent US3598645A successfully refreshed from Google Patents.
US3598645A
Expired / Lapsed
US
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Method of activating cds-photoresistors by heating in contact with cds admixed with cdo and cdse
Assignee: US Philips Corp
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Filing: 1968-12-13
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Granted: 1971-08-10
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Expires: 1988-12-13
Abstract
Abstract A METHOD OF ACTIVATING AND/OR RECRYSTALLIZING A CDSPHOTRESISTOR IN WHICH A CDS BODY IS HEATED IN CONTACT WITH A POWDER MIXTURE OF CDS, CDSE AND CDO IN AN OXYGEN-FREE ATOMOSPHERE.
Inventors
- 👤 Hans Winter
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 09:44
CPC Classifications
H; H10; H10P; H10P95/00; B; B60; B60R; B60R1/00; B60R1/02; B60R1/06; H10F; H10F30/00
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1974-08-09 | 1975-02-08 | 1975-08-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-08-09 | 1979-02-08 | 1979-08-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-08-09 | 1983-02-08 | 1983-08-10 | $7700.00 | Window Closed / Lapsed |