US3154384A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Apparatus for growing compound semiconductor crystal
Assignee: Texas Instruments Inc
•
Filing: 1960-04-13
•
Granted: 1964-10-27
•
Expires: 1980-04-13
Abstract
No abstract record available.
Inventors
- 👤 Morton E Jones
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 09:00
CPC Classifications
C; C30; C30B; C30B29/00; C30B29/10; C30B29/40; C30B15/00; C30B15/30; Y; Y10; Y10S; Y10S117/00; Y10S117/90; Y10T; Y10T117/00; Y10T117/10; Y10T117/1024; Y10T117/1032; Y10T117/106; Y10T117/1064
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
93 words
AN APPARATUS FOR PULLING A CRYSTAL FROM A MELT, COMPRISING A CHAMBER, A CRUCIBLE FOR CONTAINING SAID MELT, SAID CRUCIBLE BEING SUPPORTED WITHIN SAID CHAMBER, MEANS FOR HEATING SAID MELT AND SAID CHAMBER THROUGHOUT THE AREA THEREOF, MEANS EXTRUDING INTO SAID CHAMBER FOR PULLING A CRYSTAL FROM SAID MELT, AND SAID CHAMBER INCLUDING MEANS FOR SUBSTANTIALLY SEALING SAID CHAMBER AND FOR PERMITTING LEAKAGE OF GAS FROM SAID CHAMBER DURING HEATING AND CRYSTAL PULLING, AND SAID SEALING MEANS INCLUDING A POROUS BUSHING WHICH PERMITS LEAKAGE OF GAS THERETHROUGH AND THROUGH WHICH SAID CRYSTAL PULLING
References Cited (Backward Citations)
US2680410A
Cited
US2798989A
Cited
US2809135A
Cited
FR1152250A
Cited
US2890139A
Cited
US2862283A
Cited
US3031403A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1967-10-27 | 1968-04-27 | 1968-10-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-10-27 | 1972-04-27 | 1972-10-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-10-27 | 1976-04-27 | 1976-10-27 | $7700.00 | Window Closed / Lapsed |