Patent US3056653A successfully refreshed from Google Patents.
US3056653A
Expired / Lapsed
US
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Control of crystal growth in mica materials
Assignee: Owens Corning
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Filing: 1959-11-18
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Granted: 1962-10-02
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Expires: 1979-11-18
Abstract
No abstract record available.
Inventors
- 👤 Slayter Games
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 13:45
CPC Classifications
C; C30; C30B; C30B11/00; C01; C01B; C01B33/00; C01B33/20; C01B33/26; C01B33/28; C30B29/00; C30B29/10; C30B29/34; C30B29/60; C30B29/62
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
95 words
A METHOD OF PRODUCING CRYSTALLINE SHAPES FROM A SYNTHETIC MICA MATERIAL WHICH COMPRISES MELTING A BATCH OF THE MATERIAL, SLOWLY COOLING THE MOLTEN MATERIAL THROUGH A RANGE IN WHICH CONSTITUENTS THEREOF TEND TO CRYSTALLIZE BY FRACTIONAL CRYSTALLIZATION, AND MOVING AN EXTERIOR PORTION OF THE BATCH IN A DIRECTION HAVING COMPONENT PERPENDICULAR TO THE BODY THEREOF TO APPLY CONTROLLED, UNIFORM PRESSURE TO THE EXTERIOR PORTION OF THE MATERIAL AS IT IS COOLED THROUGH SAID RANGE, SAID PRESSURE BEING DIFFERENT THAT THAT ON AT LEAST ONE OTHER EXTERIOR PORTION OF THE MATERIAL WHEREBY CRYSTALS TENDING TO FORM
Claim 2
Independent Claim
95 words
A METHOD OF PRODUCING CRYSTALLINE SHAPES FROM A SYNTHETIC MICA MATERIAL WHICH COMPRISES MELTING A BATCH OF THE MATERIAL, SLOWLY COOLING THE MOLTEN MATERIAL THROUGH A RANGE IN WHICH CONSTITUENTS THEREOF TEND TO CRYSTALLIZE BY FRACTIONAL CRYSTALLIZATION, AND MOVING AN EXTERIOR PORTION OF THE BATCH IN A DIRECTION HAVING COMPONENT PERPENDICULAR TO THE BODY THEREOF TO APPLY CONTROLLED, UNIFORM PRESSURE TO THE EXTERIOR PORTION OF THE MATERIAL AS IT IS COOLED THROUGH SAID RANGE, SAID PRESSURE BEING DIFFERENT THAT THAT ON AT LEAST ONE OTHER EXTERIOR PORTION OF THE MATERIAL WHEREBY CRYSTALS TENDING TO FORM
References Cited (Backward Citations)
US2675853A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1965-10-01 | 1966-04-02 | 1966-10-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-10-01 | 1970-04-02 | 1970-10-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-10-01 | 1974-04-02 | 1974-10-02 | $7700.00 | Window Closed / Lapsed |