US2042435A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Treatment of titanium-bearing materials
Assignee: BURGESS TITANIUM Co
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Filing: 1934-09-27
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Granted: 1936-05-26
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Expires: 1954-09-27
Abstract
No abstract record available.
Inventors
- 👤 Svend S Svendsen
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 20:05
CPC Classifications
C; C01; C01G; C01G23/00; C01G23/04; C01G23/047; C01G23/053; C01G23/002; C01G23/02; C01G23/028; C22; C22B; C22B34/00; C22B34/10; C22B34/12; C22B34/1236; C22B34/1259; C01P; C01P2002/00; C01P2002/02; C01P2002/30; C01P2004/00; C01P2004/30; C01P2006/00; C01P2006/60
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) | 1939-05-26 | 1939-11-25 | 1940-05-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1943-05-26 | 1943-11-25 | 1944-05-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1947-05-26 | 1947-11-25 | 1948-05-26 | $7700.00 | Window Closed / Lapsed |