US2416216A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method for the preparation of titanium solutions
Assignee: NL Industries Inc
•
Filing: 1942-09-19
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Granted: 1947-02-18
•
Expires: 1962-09-19
Abstract
No abstract record available.
Inventors
- 👤 Rau Carl Weber
- 👤 Jr Francis Edward Swartz
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 18:10
CPC Classifications
C; C22; C22B; C22B34/00; C22B34/10; C22B34/12; C22B34/1236; C22B34/124; C22B34/125; C22B34/1204; C22B34/1209
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1196029A
Cited
US1489417A
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US1891911A
Cited
US1831852A
Cited
US2098026A
Cited
US2309988A
Cited
US2278709A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1950-02-17 | 1950-08-19 | 1951-02-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1954-02-17 | 1954-08-19 | 1955-02-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1958-02-17 | 1958-08-19 | 1959-02-18 | $7700.00 | Window Closed / Lapsed |