PROCEDURE FOR THE PREPARATION .beta.-LITHIUMALUMINATE
CA 1086920 A · Owner: Deutsche Gold- Und Silber-Scheideanstalt Vormals Roessler · Inventors: Seibold, Klaus; Kobertein, Edgar; Feldmann, Martin
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
The present invention provides a process for the preparation of B-lithiumaluminate (LiAlO2) which comprises: precipitating a lithiumhydroxyaluminate, corresponding to the formula Li20, A12O3 ? nH2O, from aqueous solutions which con-, tain lithium ions and aluminum values either as aluminum ions or as the element, at a pH higher than 7 and at concentrations of the two metal components of at least 0.1 gramatoms per liter the resulting precipitate being washed and converted thereafter into B-lithiumaluminate.
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Listed from its CIPO record in Patent Yard's archive of Canadian patents past their term. Its claims, description and drawings are in the CIPO record and on Google Patents, and the Claude kit works from them.
Why it's free to use
- Granted October 7, 1980. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended October 7, 1997.
- We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
Timeline
Timeline From CIPO dates
Sources & verification
Official CIPO records
Everything on this page comes from the CIPO record linked above. Contains information licensed under the Open Government Licence – Canada.