Tuck-in needle
CA 1071061 A · Owner: Du Pont Canada Inc. · Inventors: Wuthrich, Jakob
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
Du Pont of Canada Limited, (Wuthrich, Jakob) ABSTRACT, An improved tuck-in needle is disclosed whlch is, useful for forming selvedges on woven structures prepared from, flexible tapes, on a loom having the weft supply bobbin or the loom outside the shed of warp tapes. The hook-shaped tuck-in needle is characterized by a beard attached by an arcuate head to a shank having a tapered portion and a straight portion the, narrow part of the tapered portion being attached to the head. The tip of the beard lies between two lines extending through opposing edges of the straight portion of shank the two lines, lylng in a plane passing through the centres of the beard shank, head and beard tip.
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 February 5, 1980. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended February 5, 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.