US3389957A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Process for selectively carbiding titanium, iron, and vanadium values
Assignee: Strategic Materials Corp
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Filing: 1965-01-19
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Granted: 1968-06-25
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Expires: 1985-01-19
Abstract
No abstract record available.
Inventors
- 👤 Leonard E Olds
- 👤 Murray C Udy
- 👤 John R Wesel
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 10:16
CPC Classifications
C; C01; C01G; C01G31/00; C01G31/04; C01B; C01B32/00; C01B32/90; C22; C22B; C22B34/00; C22B34/10; C22B34/12; C22B34/1218; C22B34/1222; C01P; C01P2006/00; C01P2006/80; Y; Y02; Y02P; Y02P10/00; Y02P10/20
Claims Analysis
Total Claims: 0
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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) | 1971-06-25 | 1971-12-25 | 1972-06-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-06-25 | 1975-12-25 | 1976-06-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-06-25 | 1979-12-25 | 1980-06-25 | $7700.00 | Window Closed / Lapsed |