US3305313A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of producing gallium phosphide in crystalline form
Assignee: Lanteris Space LLC
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Filing: 1963-12-18
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Granted: 1967-02-21
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Expires: 1983-12-18
Abstract
No abstract record available.
Inventors
- 👤 Valdeko H Sirgo
- 👤 John L Richards
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 14:51
CPC Classifications
C; C30; C30B; C30B11/00; C30B11/04; C30B11/06; C30B11/065; C01; C01B; C01B25/00; C01B25/06; C30B29/00; C30B29/10; C30B29/40; C30B29/44
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
171 words
A METHOD OF PRODUCING CRYSTALLINE GALLIUM PHOSPHIDE BY REACTION OF GALLIUM WITH PHOSPHORUS VAPOR AND GRADUAL COOLING OF SAID GALLIUM PHOSPHIDE FORMED BY SAID REACTION, EVEN WHEN SAID PHOSPHORUS VAPOR HAS A RELATIVELY LOW VAPOR PRESSURE DURING BOTH SAID REACTION AND SAID COOLING, SAID METHOD COMPRISING THE SUCCESSIVE STEPS OF: POSITIONING A QUANTITY OF PHOSPHORUS WITHIN ONE PART OF AN EVACUABLE VESSEL, POSITIONING IN A DIFFERENT PART OF SAID VESSEL A CRUCIBLE WHICH IS PERMEABLE TO PHOSPHORUS VAPOR AND COMPLETELY ENCLOSES A QUANTITY OF GALLIUM, EVACUATING SAID VESSEL AND SEALING SAID EVACUATED VESSEL, ESTABLISHING SAID PHOSPHORUS AT A FIRST TEMPERATURE TO PRODUCE WITHIN SAID VESSEL PHOSPHORUS VAPOR HAVING A VAPOR PRESSURE SUFFICIENT TO PASS PHOSPHORUS VAPOR THROUGH SAID CRUCIBLE INTO CONTACT WITH GALLIUM THEREWITHIN, CONCURRENTLY ESTABLISHING SAID GALLIUM AT A SECOND TEMPERATURE SUFFICIENTLY HIGH FOR FORMATION OF GALLIUM PHOSPHIDE WITHIN SAID CRUCIBLE BY REACTION BETWEEN GALLIUM WITHIN SAID CRUCIBLE AND LPHOSPHORUS CONTACTING THE LATTER GALLIUM. MAINTAINING AT SAID FIRST TEMPERATURE SAID PHOSPHORUS POSITIONED WITHIN SAID ONE PART OF SAID VESSEL AND
Claim 2
Independent Claim
171 words
A METHOD OF PRODUCING CRYSTALLINE GALLIUM PHOSPHIDE BY REACTION OF GALLIUM WITH PHOSPHORUS VAPOR AND GRADUAL COOLING OF SAID GALLIUM PHOSPHIDE FORMED BY SAID REACTION, EVEN WHEN SAID PHOSPHORUS VAPOR HAS A RELATIVELY LOW VAPOR PRESSURE DURING BOTH SAID REACTION AND SAID COOLING, SAID METHOD COMPRISING THE SUCCESSIVE STEPS OF: POSITIONING A QUANTITY OF PHOSPHORUS WITHIN ONE PART OF AN EVACUABLE VESSEL, POSITIONING IN A DIFFERENT PART OF SAID VESSEL A CRUCIBLE WHICH IS PERMEABLE TO PHOSPHORUS VAPOR AND COMPLETELY ENCLOSES A QUANTITY OF GALLIUM, EVACUATING SAID VESSEL AND SEALING SAID EVACUATED VESSEL, ESTABLISHING SAID PHOSPHORUS AT A FIRST TEMPERATURE TO PRODUCE WITHIN SAID VESSEL PHOSPHORUS VAPOR HAVING A VAPOR PRESSURE SUFFICIENT TO PASS PHOSPHORUS VAPOR THROUGH SAID CRUCIBLE INTO CONTACT WITH GALLIUM THEREWITHIN, CONCURRENTLY ESTABLISHING SAID GALLIUM AT A SECOND TEMPERATURE SUFFICIENTLY HIGH FOR FORMATION OF GALLIUM PHOSPHIDE WITHIN SAID CRUCIBLE BY REACTION BETWEEN GALLIUM WITHIN SAID CRUCIBLE AND LPHOSPHORUS CONTACTING THE LATTER GALLIUM. MAINTAINING AT SAID FIRST TEMPERATURE SAID PHOSPHORUS POSITIONED WITHIN SAID ONE PART OF SAID VESSEL AND
References Cited (Backward Citations)
US2871100A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1970-02-20 | 1970-08-22 | 1971-02-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-02-20 | 1974-08-22 | 1975-02-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-02-20 | 1978-08-22 | 1979-02-21 | $7700.00 | Window Closed / Lapsed |