Expired Canadian patentCanada
Method of stripping pulp bales and a machine therefor
CA 1058819 A · Owner: Olsson, Carl F.S. · Inventors: Olsson, Carl F.S.
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 method and an apparatus is disclosed for a coarse defibering of pulp bales with tools that work over the entire cross section of the bales in such a way that the tools strike against the feeding direction of the bales and lifts the fibers out of the bale.
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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 July 24, 1979. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended July 24, 1996.
- We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
Filed—
GrantedJuly 24, 1979
Term endedJuly 24, 1996
Patent numberCA 1058819 A
Classification (IPC)D01G7/00 +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.