US3591348A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of growing crystalline materials
Assignee: Saint Gobain Ceramics and Plastics Inc
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Filing: 1968-01-24
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Granted: 1971-07-06
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Expires: 1988-01-24
Abstract
Abstract METHOD OF GROWING CRYSTALLINE MATERIALS IN THE FORM OF ELONGATE BODIES OF PREDETERMINED CONSTANT CROSS-SECTION. THE METHOD INVOLVES PROVISION OF A SHAPING MEMBER HAVING A SURFACE WITH A GROSS CONFIGURATION CONFORMING TO THE DESIRED CROSS-SECTIONAL SHAPE OF THE BODY TO BE GROWN, ESTABLISHING ON THE SURFACE A LIQUID FILM OF THE MATERIAL TO BE GROWN, AND CONTINUOUSLY GROWING THE BODY FROM THE LIQUID FILM WHILE SIMULTANEOUSLY FEEDING ADDITIONAL MATERIAL TO SAID SURFACE TO REPLENISH SAID FILM.
Inventors
- 👤 Harold E La Belle Jr
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 15:07
CPC Classifications
C; C30; C30B; C30B15/00; C30B15/34; C22; C22C; C22C49/00; C22C49/02; C22C49/04
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1974-07-05 | 1975-01-04 | 1975-07-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-07-05 | 1979-01-04 | 1979-07-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-07-05 | 1983-01-04 | 1983-07-06 | $7700.00 | Window Closed / Lapsed |