Patent US1699173A successfully refreshed from Google Patents.
US1699173A
Expired / Lapsed
US
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Process of producing titanium oxide from titaniferous iron ores
Assignee: Individual
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Filing: 1924-08-21
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Granted: 1929-01-15
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Expires: 1944-08-21
Abstract
No abstract record available.
Inventors
- 👤 Whittemore Carl Raymond
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 11:23
CPC Classifications
C; C22; C22B; C22B34/00; C22B34/10; C22B34/12; C22B34/1236; C22B34/124; C22B34/1204; C22B34/1209
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) | 1932-01-15 | 1932-07-16 | 1933-01-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1936-01-15 | 1936-07-16 | 1937-01-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1940-01-15 | 1940-07-16 | 1941-01-15 | $7700.00 | Window Closed / Lapsed |