Patent US3737520A successfully refreshed from Google Patents.
US3737520A
Expired / Lapsed
US
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Salt-gel process for the manufacture of fibrous alkali metal hexatitanates
Assignee: EIDP Inc
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Filing: 1972-04-06
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Granted: 1973-06-05
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Expires: 1992-04-06
Abstract
Abstract A PROCESS IS PROVIDED FOR THE PREPARATION OF FIBROUS ALKALI METAL HEXATITANATES BY HOMOGENEOUSLY ADMIXING AN AQUEOUS ALKALI METAL HYDROXIDE SOLUTION AND AN AQUEOUS TITANIUM OXYCHLORIDE SOLUTION TO FORM A SALT-GEL WHICH IS THEN CALCINED AT 850-1050*C. PAPER PULP FIBERS MAY BE INCLUDED IN FORMING THE SALT-GEL TO FACILITATE RECOVERY OF THE CALCINED FIBERS.
Inventors
- 👤 H Jacobson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 08:45
CPC Classifications
C; C01; C01G; C01G23/00; C01G23/003; C01G23/005; C01P; C01P2004/00; C01P2004/01; C01P2004/02; C01P2004/10; C01P2004/54; C01P2006/00; C01P2006/12
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) | 1976-06-04 | 1976-12-04 | 1977-06-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-06-04 | 1980-12-04 | 1981-06-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-06-04 | 1984-12-04 | 1985-06-05 | $7700.00 | Window Closed / Lapsed |