Crystal growing apparatus
CA 1320101 C · Owner: Mobil Solar Energy Corporation · Inventors: Harvey, David S.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
Novel apparatus is disclosed for growing tubular crystalline bodies according to the EFG proces wherein, the apparatus has at least one exterior passage and at least one interior passage formed in its crucible-die assembly and associated parts, whereby gases introduced into the at least one exterior passage will be delivered to the zone located outside the growing crystalline body (i.e. the "exterior" zone) adjacent to the growth face on the die member, and gases introduced into the at least one interior passage will be delivered to the zone located inæide of the hollow crystalline body (i.e. the "interior" zone) adjacent to the growth face on the die member, whereby the atmosphere in each …
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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 July 13, 1993. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended July 13, 2010.
- 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.