Catalyst retainer for a reactor tube
CA 2044749 A1 · Owner: Texaco Chemical Company · Inventors: Trujillo, Sheldon G.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
D# 81, 040-F, ABSTRACT, In a reactor tube which contains a particulated catalyst a, retainer is removably positioned in the tube exhaust port. The retainer includes a head section to support the catalyst bed and a handle which prohibits the retainer from being inserted too far into the tube. A deformed segment of the retainer is shaped to engage the reactor tube inner wall to effectuate a frictional hold between retainer and tube. (rbb81040.app)
Read the whole patent
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
- Filed June 17, 1991. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended June 17, 2011.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by June 17, 2013.
- 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.