US2979386A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Crystal growing apparatus
Assignee: Individual
•
Filing: 1956-08-02
•
Granted: 1961-04-11
•
Expires: 1976-08-02
Abstract
No abstract record available.
Inventors
- 👤 Shockley William
- 👤 Richard V Jones
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 11:28
CPC Classifications
C; C30; C30B; C30B15/00; C30B15/20; C30B15/22; C30B15/26; C30B15/30; Y; Y10; Y10T; Y10T117/00; Y10T117/10; Y10T117/1004; Y10T117/1008; Y10T117/1012; Y10T117/1024; Y10T117/1032; Y10T117/1068
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
77 words
A CRYSTAL GROWING APPARATUS FOR GROWING A CRYSTAL FROM A MASS OF THE SAME MATERIAL COMPRISING MEANS ADAPTED TO MAINTAIN THE TEMPERATURE OF THE MASS NEAR ITS MELTING POINT, MEANS EFFECTING A HEAT EXCHANGE TO AN UPPER LOCALIZED REGION OF THE MASS WHEREBY THE REGION IS RAISED ABOVE THE MELTING POINT OF THE MATERIAL TO FORM A POOL OF THE MATERIAL WHICH IS CONTAINED BY THE MASS, AND MEANS FOR VIEWING THE UPPER SURFACES OF SAID MATERIAL
Claim 2
Dependent Claim
77 words
A CRYSTAL GROWING APPARATUS FOR GROWING A CRYSTAL FROM A MASS OF THE SAME MATERIAL COMPRISING MEANS ADAPTED TO MAINTAIN THE TEMPERATURE OF THE MASS NEAR ITS MELTING POINT, MEANS EFFECTING A HEAT EXCHANGE TO AN UPPER LOCALIZED REGION OF THE MASS WHEREBY THE REGION IS RAISED ABOVE THE MELTING POINT OF THE MATERIAL TO FORM A POOL OF THE MATERIAL WHICH IS CONTAINED BY THE MASS, AND MEANS FOR VIEWING THE UPPER SURFACES OF SAID MATERIAL
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1964-04-10 | 1964-10-10 | 1965-04-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1968-04-10 | 1968-10-10 | 1969-04-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1972-04-10 | 1972-10-10 | 1973-04-11 | $7700.00 | Window Closed / Lapsed |