Patent US3397979A successfully refreshed from Google Patents.
US3397979A
Expired / Lapsed
US
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Process for incorporating aluminum into dispersion-modified metals
Assignee: Fansteel Inc
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Filing: 1966-01-10
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Granted: 1968-08-20
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Expires: 1986-01-10
Abstract
No abstract record available.
Inventors
- 👤 Richard F Regester
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 12:48
CPC Classifications
C; C22; C22C; C22C19/00; C22C19/007; C22C32/00; C22C32/001; C22C32/0015; C22C32/0026; C22C32/0036
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2755184A
Cited
US2973570A
Cited
US3150443A
Cited
US3087234A
Cited
GB941886A
Cited
US3180727A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1971-08-20 | 1972-02-19 | 1972-08-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-08-20 | 1976-02-19 | 1976-08-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-08-20 | 1980-02-19 | 1980-08-20 | $7700.00 | Window Closed / Lapsed |