US3600294A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Electrocrystallizer
Assignee: United States Department of the Air Force
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Filing: 1967-08-15
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Granted: 1971-08-17
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Expires: 1987-08-15
Abstract
Abstract AN APPARATUS AND METHOD FOR GROWING SINGLE CRYSTALS COMPRISING AN ELECTROCHEMICAL CIRCUIT INCLUDING A MEANS FOR ALTERNATING IN AN ASYMMETRICALLY TIMED MANNER THE DIRECTION OF CURRENT FLOW WITHIN THE ELECTROCHEMICAL CIRCUIT. ALSO INCLUDED IS A MEANS TO EFFECT THE VERTICAL MOVEMENT OF THE ELECTROCHEMICAL CIRUIT''S ELECTROLYTE IN A DOWNWARD DIRECTION AWAY FROM A GROWING CRYSTAL AT A RATE SUBSTANTIALLY SIMILAR TO THE RATE OF GROWTH OF THE GROWING CRYSTAL.
Inventors
- 👤 Bernard Rubin
- 👤 John J O'connor
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 22:42
CPC Classifications
C; C30; C30B; C30B7/00; C30B7/12
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) | 1974-08-16 | 1975-02-15 | 1975-08-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-08-16 | 1979-02-15 | 1979-08-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-08-16 | 1983-02-15 | 1983-08-17 | $7700.00 | Window Closed / Lapsed |