Patent US2768892A successfully refreshed from Google Patents.
Patent US3929970A successfully refreshed from Google Patents.
US3929970A
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Tl{hd 3 {b PSe{hd 4 {b compound, single crystals
Assignee: Westinghouse Electric Corp
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Filing: 1973-08-29
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Granted: 1975-12-30
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Expires: 1993-08-29
Abstract
Abstract The compound Tl3PSe4 is disclosed. Non-conducting single crystals of the compound are prepared which have outstanding acousto-optical properties including an exceptionally high acousto-optical figure of merit. The crystals are used in various acousto-optical devices including a display device, a laser modulator, a non-collinear acousto-optic filter, and an acoustic delay line.
Inventors
- 👤 Thelma J Isaacs
- 👤 Milton S Gottlieb
- 👤 John D Feichtner
- 👤 Andrea A Price
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 10:50
CPC Classifications
G; G02; G02F; G02F1/00; G02F1/01; G02F1/11; C; C01; C01B; C01B25/00; C30; C30B; C30B11/00; C30B29/00; C30B29/10; C30B29/46; H; H01; H01S; H01S3/00; H01S3/10; H01S3/106; H01S3/1068
Claims Analysis
Total Claims: 8
Claim 1
Independent Claim
23 words
A COMPOUND HAVING THE GENERAL FORMULA TI3XSE4 WHERE X IS ABOUT 50 TO ABOUT 100% PHOSPHORUS AND ABOUT 0 TO ABOUT 50% ARSENIC.
Claim 2
Dependent Claim
23 words
A COMPOUND HAVING THE GENERAL FORMULA TI3XSE4 WHERE X IS ABOUT 50 TO ABOUT 100% PHOSPHORUS AND ABOUT 0 TO ABOUT 50% ARSENIC.
Claim 3
Dependent Claim
9 words
A single crystal of the compound of claim 1.
Claim 4
Dependent Claim
10 words
A compound according to claim 1 having the formula Tl3PSe4.
Claim 5
Dependent Claim
14 words
A biaxial, non-piezoelectric, orthorhombic single crystal according to claim 2 having the formula Tl3PSe4.
Claim 6
Dependent Claim
20 words
A single crystal according to claim 2 which is at least about 10 3 cm wide and 1 mm long.
Claim 7
Dependent Claim
23 words
A single crystal according to claim 5 which is at least about 0.5 cm in diameter and at least about 1 cm long.
Claim 8
Dependent Claim
12 words
A single crystal according to claim 5 having two parallel optical faces.
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) | 1978-12-29 | 1979-06-30 | 1979-12-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1982-12-29 | 1983-06-30 | 1983-12-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1986-12-29 | 1987-06-30 | 1987-12-30 | $7700.00 | Window Closed / Lapsed |