Anvil jack
CA 2183202 C · Owner: Sandford, Peter E. · Inventors: Sandford, Peter E.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
An apparatus and method are provided for die cutting both sides of paper-board sheets. The apparatus includes a die having a plurality of cutting knives projecting from a, base, the cutting knives being set into a preselected pattern of grooves within the base. The die further includes a die blade which is mounted in the base as well as , an anvil, which is also mounted in the base and which is oriented substantially-parallel to the die, blade. Securing elements secure at least one of the die blade and the anvil to the base. Manually-actuatable members are provided for adjusting the securing elements for, selectively raising or lowering at least one of the selected die blade and 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 August 13, 1996 and granted February 27, 2001. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended August 13, 2016.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by August 13, 2018.
- 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.