Patent US2948587A successfully refreshed from Google Patents.
US2948587A
Expired / Lapsed
US
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Process for the preparation of titanium tetrachloride
Assignee: Shawinigan Chemicals Ltd
•
Filing: 1956-02-28
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Granted: 1960-08-09
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Expires: 1976-02-28
Abstract
No abstract record available.
Inventors
- 👤 Herbert S Johnson
- 👤 Arthur H Andersen
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 07:58
CPC Classifications
B; B01; B01J; B01J8/00; B01J8/18; B01J8/24; B01J8/42; C; C22; C22B; C22B34/00; C22B34/10; C22B34/12; C22B34/1218; C22B34/1222; Y; Y02; Y02P; Y02P10/00; Y02P10/20
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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US2184885A
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US2398443A
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US2462661A
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US2475607A
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US2589466A
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US2698777A
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US2701179A
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US2799640A
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1963-08-09 | 1964-02-08 | 1964-08-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-08-09 | 1968-02-08 | 1968-08-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-08-09 | 1972-02-08 | 1972-08-09 | $7700.00 | Window Closed / Lapsed |