Metal shears
CA 2194635 A1 · Owner: Chang, Jong-Shing · Inventors: Chang, Jong-Shing
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A metal shears comprises two handles, two toggles two jaws, and two, clamping and cutting members. The jaws have two opposed recesses which are provided respectively with a first load surface having a first resisting surface and a second resisting surface. The clamping and cutting members comprise a plurality of second load surfaces capable of making contact with the first load surface and having a plurality of cutting blades. The clamping and cutting members have a length equal to the distance between the first and the second resisting surfaces. The jaws are provided respectively with a resisting member which presses against the clamping and cutting member to facilitate the change 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 January 8, 1997. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended January 8, 2017.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by January 8, 2019.
- 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.