Monomer exhaust system
CA 2034306 C · Owner: Shealy, Dennis G. · Inventors: Stamey, Eugene T.; Shealy, Dennis G.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
An exhaust system for exhausting fumes released from a melt spinning process has a housing defining an exhaust system a nozzle, assembly extending partially from the housing toward the fume source with a nozzle tip disposed sufficiently close to the fume source to collect the fumes, a duct in communication with the exhaust chamber and having an outlet for exhausting the fumes a, driving force moving the fumes through the system from the nozzle to the outlet, and a method for automatically purging the exhaust system of condensed fume deposits.
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 January 16, 1991 and granted May 14, 1996. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended January 16, 2011.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by January 16, 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.