Patent US3305385A successfully refreshed from Google Patents.
US3305385A
Expired / Lapsed
US
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Method for the preparation of gallium phosphide
Assignee: Raytheon Co
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Filing: 1963-06-27
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Granted: 1967-02-21
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Expires: 1983-06-27
Abstract
No abstract record available.
Inventors
- 👤 Frank A Pizzarello
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 11:52
CPC Classifications
C; C01; C01B; C01B25/00; C01B25/06
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
82 words
A METHOD FOR THE PRODUCTION OF GALLIUM PHOSPHIDE WHICH COMPRISES THE STEPS OF FORMING A MILXTURE OF VAPORS OF PHOSPHORUS AND PHOSPHORUS-CONTAINING MATERIALS SELECTED FROM THE GROUP CONSISTING OF PHOSPHORUS PENTOXIDE, PHOSPHORUS OXYCHLORIDE AND PHOSLPHORUS TRICHLORIDE, MIXING THE RESULTING PHOSPHORUS-CONTAINING VAPORS WITH A CARRIER GAS BY VAPORIZING IN A HEATING CHAMBER INTO A STREAM OF THE CARRIER GAS, PASSING THE RESULTING CARRIER GAS MIXTURE INTO CONTACT WITH LIQUID GALLIUM AT A TEMPERATURE ABOVE 1000*C., PASSING THE GAS STREAM INTO A COOLING ZONE
Claim 2
Independent Claim
82 words
A METHOD FOR THE PRODUCTION OF GALLIUM PHOSPHIDE WHICH COMPRISES THE STEPS OF FORMING A MILXTURE OF VAPORS OF PHOSPHORUS AND PHOSPHORUS-CONTAINING MATERIALS SELECTED FROM THE GROUP CONSISTING OF PHOSPHORUS PENTOXIDE, PHOSPHORUS OXYCHLORIDE AND PHOSLPHORUS TRICHLORIDE, MIXING THE RESULTING PHOSPHORUS-CONTAINING VAPORS WITH A CARRIER GAS BY VAPORIZING IN A HEATING CHAMBER INTO A STREAM OF THE CARRIER GAS, PASSING THE RESULTING CARRIER GAS MIXTURE INTO CONTACT WITH LIQUID GALLIUM AT A TEMPERATURE ABOVE 1000*C., PASSING THE GAS STREAM INTO A COOLING ZONE
References Cited (Backward Citations)
US3206406A
Cited
DE1130421B
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 |