Patent US3625673A successfully refreshed from Google Patents.
US3625673A
Expired / Lapsed
US
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Preparation of metals and metal alloys
Assignee: Chevron USA Inc
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Filing: 1969-02-03
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Granted: 1971-12-07
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Expires: 1989-02-03
Abstract
Abstract PROCESS FOR PREPARING DISPERSION-HARDENED METALS AND METAL ALLOYS, COMPRISING FORMING A SOLUTION COMPRISING METAL CHLORIDE PRECURSORS OF THE CONTINUOUS AND DISPERSED PHASES OF THE FINAL PRODUCT, ADDING AN EPOXY COMPOUND TO SAID SOLUTIONS WHEREBY A GEL COMPRISING METAL HYDOROXIDES IS FORMED, CONVERTING SAID METAL HYDROXIDES TO OXIDES, AND REDUCING THE OXIDE PRECURSORS OF THE CONTINUOUS PHASE OF THE FINAL PRODUCT, AND PRODUCTS SO PREPARED.
Inventors
- 👤 Robert H Lindquist
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 13:14
CPC Classifications
C; C01; C01B; C01B13/00; C01B13/14; C01B13/32; C01B13/322; C22; C22C; C22C1/00; C22C1/10; C22C1/1026; Y; Y10; Y10S; Y10S75/00; Y10S75/956
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1974-12-06 | 1975-06-07 | 1975-12-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-12-06 | 1979-06-07 | 1979-12-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-12-06 | 1983-06-07 | 1983-12-07 | $7700.00 | Window Closed / Lapsed |