Expired Canadian patentCanada
Comminution device
CA 1109847 A · Owner: Conair, Inc. · Inventors: Peterson, Russell I. Jr.
Overview
Drawings and full text
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A comminution device having an improved means for supporting and gaining access to the sizing screen as well as an improved arrangement for material discharge from such comminution device.
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 September 29, 1981. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended September 29, 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.
FiledSeptember 21, 1978
GrantedSeptember 29, 1981
Term endedSeptember 29, 1998
Patent numberCA 1109847 A
Classification (IPC)B02C18/22 +2 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.