Patent US2816050A successfully refreshed from Google Patents.
US2816050A
Expired / Lapsed
US
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Method of forming monocrystals
Assignee: International Business Machines Corp
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Filing: 1953-12-18
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Granted: 1957-12-10
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Expires: 1973-12-18
Abstract
No abstract record available.
Inventors
- 👤 Lloyd P Hunter
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 14:57
CPC Classifications
C; C30; C30B; C30B19/00; Y; Y10; Y10S; Y10S117/00; Y10S117/90; Y10S148/00; Y10S148/152
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
76 words
THE METHOD OF FORMING A MONOCRYSTAL COMPRISING THE STEPS OF FORMING IN A FURNACE A LATERALLY UNCONFINED POOL OF MOLTEN CRYSTALLIZABLE MATERIAL, MAINTAINING THE ATMOSPHERE IN SAID FURNACE SUBSTANTIALLY AT THE MELTING POINT OF SAID MATERIAL, BRINGING A POINTED MEMBER OF HEAT CONDUCTING MATERIAL INTO CONTACT WITH THE POOL, AND THEREAFTER SOLIDIFYING SAID POOL BY SLOWLY EXTRACTING HEAT FROM A LIMITED LOCALITY OF SAID POOL BY COOLING A PORTION OF SAID MEMBER SPACED FROM SAID POOL.
Claim 2
Independent Claim
76 words
THE METHOD OF FORMING A MONOCRYSTAL COMPRISING THE STEPS OF FORMING IN A FURNACE A LATERALLY UNCONFINED POOL OF MOLTEN CRYSTALLIZABLE MATERIAL, MAINTAINING THE ATMOSPHERE IN SAID FURNACE SUBSTANTIALLY AT THE MELTING POINT OF SAID MATERIAL, BRINGING A POINTED MEMBER OF HEAT CONDUCTING MATERIAL INTO CONTACT WITH THE POOL, AND THEREAFTER SOLIDIFYING SAID POOL BY SLOWLY EXTRACTING HEAT FROM A LIMITED LOCALITY OF SAID POOL BY COOLING A PORTION OF SAID MEMBER SPACED FROM SAID POOL.
References Cited (Backward Citations)
US303607A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1960-12-09 | 1961-06-10 | 1961-12-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1964-12-09 | 1965-06-10 | 1965-12-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1968-12-09 | 1969-06-10 | 1969-12-10 | $7700.00 | Window Closed / Lapsed |