Process for improving the impregnatability of wood
CA 1068197 A · Owner: Eisenwerk Weserhutte Ag. · Inventors: Kipp, Thorwald
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
The specification describes a process for improving the impregnatability of wood, whereby impregnating holes are opened up, without cutting the wood in the edge areas, thereof, prior to the impregnating operation by means of, solid circular needles guided substantially perpendicularly to the surface of the wood.
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 18, 1979. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended December 18, 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.
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.