US3352722A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method for growing single crystals
Assignee: Individual
•
Filing: 1965-07-27
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Granted: 1967-11-14
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Expires: 1985-07-27
Abstract
No abstract record available.
Inventors
- 👤 Frederick E Wang
- 👤 Albert M Syeles
- 👤 Wellman L Clark
- 👤 William J Buehler
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 01:25
CPC Classifications
C; C30; C30B; C30B1/00; C30B1/02; C30B29/00; C30B29/02; C30B29/10; C30B29/52
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
58 words
A METHOD FOR GROWING A SINGLE CRYSTAL FROM A POLYCRYSTALLINE SUBSTANCE SELECTED FROM THE GROUP CONSISTING OF METALS, SINGLE PHASE METALLIC ALLOYS AND SEMI-METALS WHICH COMPRISES: (A) HEATING THE SUBSTANCE TO A TEMPERATURE THAT IS BELOW ITS MELTING POINT IN AN INERT ATMOSPHERE. (B) COOLING THE SUBSTANCE, AND (C) REPEATING (A) AND (B) AT LEAST ONCE PER MINUTE.
Claim 2
Independent Claim
58 words
A METHOD FOR GROWING A SINGLE CRYSTAL FROM A POLYCRYSTALLINE SUBSTANCE SELECTED FROM THE GROUP CONSISTING OF METALS, SINGLE PHASE METALLIC ALLOYS AND SEMI-METALS WHICH COMPRISES: (A) HEATING THE SUBSTANCE TO A TEMPERATURE THAT IS BELOW ITS MELTING POINT IN AN INERT ATMOSPHERE. (B) COOLING THE SUBSTANCE, AND (C) REPEATING (A) AND (B) AT LEAST ONCE PER MINUTE.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1970-11-13 | 1971-05-15 | 1971-11-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-11-13 | 1975-05-15 | 1975-11-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-11-13 | 1979-05-15 | 1979-11-14 | $7700.00 | Window Closed / Lapsed |