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Expired Canadian patentCanada

Computerized monorail catalyst handling process and system for resid hydrotreating units

CA 1279282 C · Owner: Erickson, Michael E. · Inventors: Plichta, Roman T.; Erickson, Michael E.

CIPO record

Overview

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Its claims, description and drawings are in the Canadian Patents Database.

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Abstract From the Canadian patent

An improved catalyst handling process and system is provided to safely, effectively, and automatically transport catalyst by remote control to and from resid hydrotreating units. The process and equipment feature computerized monorail equipment for efficiently transporting special fresh catalyst containers and spent catalyst containers. Various electronic equipment is provided to electronically detect the type of catalyst stored in the catalyst containers. Lift elevators, four-prong liftfork trucks, remote control tilting mechanisms catalyst, transfer lines, deoiler units bridge cranes, and other, transport vehicles as described, can also be used.

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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 January 22, 1991. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended January 22, 2008.
  • We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
FiledSeptember 29, 1986
GrantedJanuary 22, 1991
Term endedJanuary 22, 2008
Patent numberCA 1279282 C
Classification (IPC)B01J38/00 +2 more

Timeline

Timeline From CIPO dates

19871990199319961999200220052008Application filedSep 29, 1986Patent grantedJan 22, 1991Term endedJan 22, 2008

Sources & verification

Everything on this page comes from the CIPO record linked above. Contains information licensed under the Open Government Licence – Canada.