Plate and separator containing such a plate for seizing and separating threads
CA 2036980 A1 · Owner: Hermann Wangner Gmbh & Co. Kg · Inventors: Esser, Klaus; Hacker, Hans-Eugen
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A plate for a separator for the successive seizure and separation of threads held in an array has a leading edge and at least one hook-shaped recess in the leading edge. The recess has a depth in the direction of plate movement which is greater than half the width of the recess. Between a hook tip and the leading edge there extends a fender edge at an angle of 15° to 90° relative to the direction of plate movement. The hook tip is rounded with a radius of up to 10% of the width of the hookshaped recess.
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
- Filed February 25, 1991. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended February 25, 2011.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by February 25, 2013.
- 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.