Patent US2974064A successfully refreshed from Google Patents.
US2974064A
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Process for the production of boron phosphide
Assignee: Monsanto Chemicals Ltd
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Filing: 1958-03-03
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Granted: 1961-03-07
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Expires: 1978-03-03
Abstract
No abstract record available.
Inventors
- 👤 Forrest V Williams
- 👤 Robert A Ruehrwein
- 👤 Moeller Therald
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 08:48
CPC Classifications
C; C01; C01B; C01B25/00; C01B25/06; C04; C04B; C04B35/00; C04B35/515; C09; C09K; C09K3/00; C09K3/14; C09K3/1409; C23; C23C; C23C16/00; C23C16/22; C23C16/30; C23C24/00; H; H01; H01C; H01C17/00; H01C17/06; H01C17/075; H01C17/14; H10; H10P; H10P95/00; Y; Y02; Y02T; Y02T50/00; Y02T50/60
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
27 words
PROCESS FOR THE PRODUCTION OF CRYSTALLINE BORON PHOSPHIDE WHICH COMPRISES CONTACTING A GASEOUS BORON COMPOUND WITH ELEMENTAL PHOSPHORUS AND HYDROGEN AT A TEMPERATURE OF A LEAST 1,100*F.
Claim 2
Dependent Claim
27 words
PROCESS FOR THE PRODUCTION OF CRYSTALLINE BORON PHOSPHIDE WHICH COMPRISES CONTACTING A GASEOUS BORON COMPOUND WITH ELEMENTAL PHOSPHORUS AND HYDROGEN AT A TEMPERATURE OF A LEAST 1,100*F.
References Cited (Backward Citations)
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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) | 1964-03-06 | 1964-09-05 | 1965-03-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1968-03-06 | 1968-09-05 | 1969-03-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1972-03-06 | 1972-09-05 | 1973-03-07 | $7700.00 | Window Closed / Lapsed |