Stockwasher
CA 1091494 A · Owner: Lenox Institute For Research, Inc. · Inventors: Krofta, Milos
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
Apparatus for washing stock such as used in papermaking and like industries in which an upward moving inclined filter screen is used to separate washed stock from the washing water. A structure is provided carrying in counter flow movement an endless filter screen past an inlet for watered stock and past at least one washing station in which additional washing water is supplied. The washed stock is finally compacted between a drum and the filter screen to remove surplus water and conveyed away from the filter screen. - 1 -
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 December 16, 1980. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended December 16, 1997.
- 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.