Automatic lock slider for slide fastener
CA 2000872 C · Owner: Akashi, Shunji · Inventors: Akashi, Shunji; Oda, Kiyoshi
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
An automatic lock slider for slide fastener comprises a slider body, a support lug integral with and disposed over the top surface of the slider body and a pull tab with which to move the slider. The slider includes a locking member in the form of a polygonal leaf spring having at one end a locking prong and at the other end a U-bent portion. A bulged portion is formed intermediate the prong and the U-bent portion and spaced a sufficient distance from the lower surface of the lug to permit lifting of the prong clear out of the passage of coupling element rows of a slide fastener.
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 October 17, 1989 and granted August 25, 1998. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended October 17, 2009.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by October 17, 2011.
- 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.