Patent US3451768A successfully refreshed from Google Patents.
US3451768A
Expired / Lapsed
US
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Preparation of delta form crystalline titanium trichloride
Assignee: Montedison SpA
•
Filing: 1965-06-11
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Granted: 1969-06-24
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Expires: 1985-06-11
Abstract
No abstract record available.
Inventors
- 👤 Luciano Luciani
- 👤 Gianfranco Corsi
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 14:01
CPC Classifications
B; B01; B01J; B01J27/00; B01J27/06; C; C01; C01G; C01G23/00; C01G23/02; C08; C08F; C08F10/00; Y; Y10; Y10S; Y10S423/00; Y10S423/09; Y10S423/15; Y10S526/00; Y10S526/906
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US3010787A
Cited
US3032510A
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US3032390A
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US3130003A
Cited
US3280093A
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US3365434A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1972-06-23 | 1972-12-23 | 1973-06-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-06-23 | 1976-12-23 | 1977-06-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-06-23 | 1980-12-23 | 1981-06-24 | $7700.00 | Window Closed / Lapsed |