Tool for a knitting machine
CA 2016644 C · Owner: Teufel, Albert · Inventors: Halamoda, Hans-Joachim; Teufel, Albert
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A knitting tool such as a selector sinker or a needle, for a knitting machine includes a flat shank and a narrow, elongate control spring projecting from a slot-like opening in a narrow side of the shank. One end of the control spring has a broader anchorage section at one end which is inserted into a recess provided at an inward end of the opening in the shank. The width of the recess, measured transversely to the longitudinal extent of the opening, is greater at least at, certain locations, than the width of the opening. The thickness of the anchorage section or the control spring is less than or equal to the depth of the recess. As a result the control spring is rigidly anchored in the …
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 May 11, 1990 and granted March 30, 1993. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended May 11, 2010.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by May 11, 2012.
- 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.