Life cycle indicator torsion spring
CA 2079556 A1 · Owner: Schrader, Gary E. · Inventors: Montminy, Armand T.; Schrader, Gary E.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A crimping tool comprises a pair of handles crimping, jaws, dies, and/or die nests positioned at one end of the, handles and in alignment with each other to receive a connector therebetween, a linkage extending between the handles and joining same together such that one handle pivots relative to the other and forces the jaws, dies, and/or die nests toward each other. A spring is positioned between the handles to facilitate the opening movement of the tool. The spring in the present invention is configured with a fracture zone and is positioned, in such a location that the spring is flexed during each cycle of operation. The fracture zone may include one or more coils and such coils break, …
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 September 30, 1992. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended September 30, 2012.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by September 30, 2014.
- 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.