Patent US2431691A successfully refreshed from Google Patents.
US2431691A
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Method and apparatus for consolidating refractory metal powder to dense coherent form
Assignee: Westinghouse Electric Corp
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Filing: 1944-03-13
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Granted: 1947-12-02
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Expires: 1964-03-13
Abstract
No abstract record available.
Inventors
- 👤 William J Newman
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 04:12
CPC Classifications
B; B22; B22F; B22F7/00; B22F7/02; B22F7/04; C; C22; C22C; C22C1/00; C22C1/04; C22C1/045
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US534207A
Cited
US1731255A
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US1536438A
Cited
US1768719A
Cited
US1808314A
Cited
US2300048A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1950-12-01 | 1951-06-02 | 1951-12-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1954-12-01 | 1955-06-02 | 1955-12-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1958-12-01 | 1959-06-02 | 1959-12-02 | $7700.00 | Window Closed / Lapsed |