Patent US2966424A successfully refreshed from Google Patents.
US2966424A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Crystallization of boron phosphide
Assignee: Monsanto Chemicals Ltd
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Filing: 1958-03-03
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Granted: 1960-12-27
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Expires: 1978-03-03
Abstract
No abstract record available.
Inventors
- 👤 Robert A Ruehrwein
- 👤 Forrest V Williams
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 06:06
CPC Classifications
C; C01; C01B; C01B25/00; C01B25/06
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
25 words
PROCESS FOR THE CRYSTALLIZATION OF AMORPHOUS BORON PHOSPHIDE WHICH COMPRISES HEATING AMORPHOUS BORON PHOSPHIDE TO A TEMPERATURE ABOVE 1,400*F. IN THE PRESENCE OF PHOSPHORUS VAPOR.
Claim 2
Dependent Claim
25 words
PROCESS FOR THE CRYSTALLIZATION OF AMORPHOUS BORON PHOSPHIDE WHICH COMPRISES HEATING AMORPHOUS BORON PHOSPHIDE TO A TEMPERATURE ABOVE 1,400*F. IN THE PRESENCE OF PHOSPHORUS VAPOR.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1963-12-27 | 1964-06-27 | 1964-12-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-12-27 | 1968-06-27 | 1968-12-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-12-27 | 1972-06-27 | 1972-12-27 | $7700.00 | Window Closed / Lapsed |