Expired Canadian patentCanada
Process for preparing discrete, zeolite-containing particles
CA 1235685 A · Owner: Mobil Oil Corporation · Inventors: Chu, Pochen; Rosinski, Edward J.
Overview
Drawings and full text
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
Discrete particles, for example extrudates and, microspheres, comprising up to 60% by weight of high-silica zeolite in a matrix are obtained by in situ seeded crystallization of the zeolite in the absence of organic cations.
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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 April 26, 1988. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended April 26, 2005.
- We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
FiledMarch 13, 1985
GrantedApril 26, 1988
Term endedApril 26, 2005
Patent numberCA 1235685 A
Classification (IPC)C01B33/26 +2 more
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.