Expired Canadian patentCanada
Ejection of molded materials
CA 1105220 A · Owner: Cafarelli, Ralph J. · Inventors: Cafarelli, Ralph J.
Overview
Drawings and full text
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
Method and apparatus for the ejection of molded materials using a deflector that acts between the face of a mold and a structure being molded by applying angular thrust to the molded structure to free it completely from the mold.
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
- Granted July 21, 1981. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended July 21, 1998.
- We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
FiledJuly 25, 1977
GrantedJuly 21, 1981
Term endedJuly 21, 1998
Patent numberCA 1105220 A
Classification (IPC)B29C45/42 +1 more
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.