US3033659A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Preparation of phosphor crystals
Assignee: General Electric Co
•
Filing: 1959-04-21
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Granted: 1962-05-08
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Expires: 1979-04-21
Abstract
No abstract record available.
Inventors
- 👤 Albrecht G Fischer
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 16:28
CPC Classifications
H; H05; H05B; H05B33/00; H05B33/12; H05B33/14; C; C09; C09K; C09K11/00; C30; C30B; C30B11/00; C30B29/00; C30B29/02; C30B35/00; C30B35/002; H10; H10P; H10P95/00; Y; Y10; Y10S; Y10S117/00; Y10S117/90
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
66 words
A METHOD OF GROWING CRYSTALS FROM MATERIALS HAVING RELATIVELY HIGH VAPOR PRESSURES AT ELEVATED TEMPERATURES AND HAVING MELTING POINTS IN A TEMPERATURE REGION WHERE THE GLASSY VESSELS REQUIRED TO ENCLOSE THEM HAVE LOW MECHANICAL STRENGTH, COMPRISING ENCLOSING THE CRYSTAL FORMING MATERIALS IN A GLASSY VESSEL, SEALING SAID VESSEL, ENCLOSING SAID VESSEL IN A CRUCIBLE OF A SUBSTANCE HAVING A RELATIVELY HIGH MECHANICAL STRENGTH AT ELEVATED TEM-
Claim 2
Independent Claim
66 words
A METHOD OF GROWING CRYSTALS FROM MATERIALS HAVING RELATIVELY HIGH VAPOR PRESSURES AT ELEVATED TEMPERATURES AND HAVING MELTING POINTS IN A TEMPERATURE REGION WHERE THE GLASSY VESSELS REQUIRED TO ENCLOSE THEM HAVE LOW MECHANICAL STRENGTH, COMPRISING ENCLOSING THE CRYSTAL FORMING MATERIALS IN A GLASSY VESSEL, SEALING SAID VESSEL, ENCLOSING SAID VESSEL IN A CRUCIBLE OF A SUBSTANCE HAVING A RELATIVELY HIGH MECHANICAL STRENGTH AT ELEVATED TEM-
References Cited (Backward Citations)
US2675303A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1965-05-07 | 1965-11-06 | 1966-05-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-05-07 | 1969-11-06 | 1970-05-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-05-07 | 1973-11-06 | 1974-05-08 | $7700.00 | Window Closed / Lapsed |