Apparatus for blow molding an article with compression molded areas
CA 2039005 C · Owner: Zarn, Inc. · Inventors: Lee, Norman C.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
Blow molding apparatus for producing an article including compression rings or other compression molded areas utilizes mold halves each having multiple mold sections connected in end-to-end relation by a series of guide rods having end stops to permit, limited movement of the mold sections toward and away from one another. With the present control rod arrangement only, a single actuating arrangement is necessary to accomplish the formation of multiple compression molded areas.
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 March 25, 1991 and granted April 18, 2000. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended March 25, 2011.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by March 25, 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.