US3696038A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Process for preparing single crystalline ag3ass3 and ag3,sbs3 and solid solutions thereof
Assignee: Individual
•
Filing: 1970-09-14
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Granted: 1972-10-03
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Expires: 1990-09-14
Abstract
Abstract THE SUBSTANCES PROUSTITE AG3ASS3 AND PYRARGYRITE AG3SBS3 AND SOLID SOLUTINS OF THE TWO ARE USEFUL NONLINEAR MATERIALS AND HAVE APPLICATIONS IN NON-LINEAR DEVICES. THEY OCCUR IN NATURE BUT IN A SMALL AND OPTICALLY IMPERFECT FORM. HOWEVER, THEY MAY BE PREPARED HAVING A GOOD OPTICAL QUALITY AND A LARGE SIZE BY SYNTHETIC GROWTH FROM THE MELT SUCH AS BY STOCKBARGER GROWTH, PROVIDED THAT STEPS ARE TAKEN TO ALLEVIATE THE PROBLEM OF CELLULAR GROWTH. THE MATERIALS GROWN IN SUCH A FORM MAY BE USED NOT ONLY IN NON-LINEAR DEVICES BUT ALSO IN LINEAR DEVICES SUCH AS POLARISING PRISMS.
Inventors
- 👤 Philip Hywel Davies
- 👤 Maurice Vernon Hobden
- 👤 Kenneth Fraser Hulme
- 👤 Oliver Jones
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 02:57
CPC Classifications
G; G02; G02F; G02F1/00; G02F1/35; G02F1/355; G02F1/3551; C; C30; C30B; C30B11/00; C30B29/00; C30B29/10; C30B29/46; G02B; G02B1/00; Y; Y10; Y10S; Y10S117/00; Y10S117/918
Claims Analysis
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References Cited (Backward Citations)
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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) | 1975-10-03 | 1976-04-03 | 1976-10-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-10-03 | 1980-04-03 | 1980-10-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-10-03 | 1984-04-03 | 1984-10-03 | $7700.00 | Window Closed / Lapsed |