US2858199A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Crystal production
Assignee: TDK Micronas GmbH
•
Filing: 1954-10-15
•
Granted: 1958-10-28
•
Expires: 1974-10-15
Abstract
No abstract record available.
Inventors
- 👤 Larson Christian Charles
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 22:58
CPC Classifications
C; C30; C30B; C30B15/00; C30B15/14; C30B15/16; Y; Y10; Y10S; Y10S117/00; Y10S117/905; Y10S164/00; Y10S164/04
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
65 words
THE METHOD OF FABRICATING CRYSTALS COMPRISING BOMBARDING A PORTION OF A BLOCK OF MATERIAL FROM WHICH A CYRSTAL IS TO BE MADE WITH ELECTRONS, AND BOMBARDMENT SERVING TO MELT SAID PORTION, SAID PORTION BEING DISPOSED IN ONE BLOCK SURFACE INSIDE THE PERIMETER THEREOF, AND DRAWING A SEED CRYSTAL FROM SAID MELTED PORTION, THE UNMELTED PORTION OF SAID BLOCK SERVING AS CRUCIBLE FOR THE MELTED PORTION.
Claim 2
Independent Claim
65 words
THE METHOD OF FABRICATING CRYSTALS COMPRISING BOMBARDING A PORTION OF A BLOCK OF MATERIAL FROM WHICH A CYRSTAL IS TO BE MADE WITH ELECTRONS, AND BOMBARDMENT SERVING TO MELT SAID PORTION, SAID PORTION BEING DISPOSED IN ONE BLOCK SURFACE INSIDE THE PERIMETER THEREOF, AND DRAWING A SEED CRYSTAL FROM SAID MELTED PORTION, THE UNMELTED PORTION OF SAID BLOCK SERVING AS CRUCIBLE FOR THE MELTED PORTION.
References Cited (Backward Citations)
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Cited
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Cited
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Cited
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Cited
FR1071730A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1961-10-27 | 1962-04-28 | 1962-10-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-10-27 | 1966-04-28 | 1966-10-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-10-27 | 1970-04-28 | 1970-10-28 | $7700.00 | Window Closed / Lapsed |