Bolt cutter
CA 1102538 A · Owner: Boyajian, Alfred Z. · Inventors: Boyajian, Alfred Z.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A bolt cutter wherein there are removably replaceable cutter blades supported in cutting relation by pivotally connected jaws and wherein the jaws are structured to transmit the force couple for cutting to the blades at opposite ends and at opposite sides. Pivotal movement of the jaws relative to each other is effected by a cam roll and cam groove interengaged by the lever handles connected to the jaws. The cam groove is structured to enable changing its contour to thereby change the mechanical advantage.
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 June 9, 1981. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended June 9, 1998.
- 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.