US3022144A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of preparing single crystal materials
Assignee: General Electric Co
•
Filing: 1958-03-17
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Granted: 1962-02-20
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Expires: 1978-03-17
Abstract
No abstract record available.
Inventors
- 👤 Addamiano Arrigo
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 12:08
CPC Classifications
H; H05; H05B; H05B33/00; H05B33/12; H05B33/14; C; C09; C09K; C09K11/00; C09K11/08; C09K11/56; C09K11/562; C09K11/565; C30; C30B; C30B11/00; C30B29/00; C30B29/10; C30B29/46; C30B29/48; H10; H10P; H10P95/00
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
103 words
THE METHOD OF PRODUCING SINGLE CRYSTALS OF ZINC SULFIDE AND ZINC SULFIDE PHOSPHORS WHICH COMPRISES HEATING A MASS OF MATERIAL OF THE GROUP CONSISTING ESSENTIALLY OF PURE ZINE SULFIDE AND ZINC SULFIDE PHOSPHOR CONTAINING ACTIVATING IMPURITIES OF LUMINESCENCE IN A CLOSED CONTAINER MAINTAINED IN AN INERT ATMOSPHERE AT A PRESSURE UNDER 100 ATMOSPHERES AND ABOVE 50 P.S.I. TO A TEMPERATURE AT LEAST ABOUT 180*C. WHILE RETAINING THE PRODUCTS OF SUCH HEATING IN THE CONTAINER FOR A TIME SUFFICIENT TO MELT THE SAID MASS AND THEN GRADUALLY COOLING THE HEATED MASS WHILE MAINTAINING SAID PRESSURE TO CARRY IT TO A FUSED SINGLE CRYSTAL FORM.
Claim 2
Independent Claim
103 words
THE METHOD OF PRODUCING SINGLE CRYSTALS OF ZINC SULFIDE AND ZINC SULFIDE PHOSPHORS WHICH COMPRISES HEATING A MASS OF MATERIAL OF THE GROUP CONSISTING ESSENTIALLY OF PURE ZINE SULFIDE AND ZINC SULFIDE PHOSPHOR CONTAINING ACTIVATING IMPURITIES OF LUMINESCENCE IN A CLOSED CONTAINER MAINTAINED IN AN INERT ATMOSPHERE AT A PRESSURE UNDER 100 ATMOSPHERES AND ABOVE 50 P.S.I. TO A TEMPERATURE AT LEAST ABOUT 180*C. WHILE RETAINING THE PRODUCTS OF SUCH HEATING IN THE CONTAINER FOR A TIME SUFFICIENT TO MELT THE SAID MASS AND THEN GRADUALLY COOLING THE HEATED MASS WHILE MAINTAINING SAID PRESSURE TO CARRY IT TO A FUSED SINGLE CRYSTAL FORM.
References Cited (Backward Citations)
US2874128A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1965-02-19 | 1965-08-21 | 1966-02-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-02-19 | 1969-08-21 | 1970-02-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-02-19 | 1973-08-21 | 1974-02-20 | $7700.00 | Window Closed / Lapsed |