Binding of documents
CA 2175405 C · Owner: Press Engineering (Proprietary) Limited · Inventors: Blumberg, Murray Basil; Hoffman, William M.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A method of manufacturing a binding strip includes the step of providing a length of metal strip from a supply thereof. The length of metal strip is folded about a first fold line parallel to a longitudinal axis thereof to form two portions angularly disposed to each other about the first fold line. The invention extends to a method of binding a calendar which includes the step of providing a length of metal strip from a supply thereof. The metal strip is folded about a first fold line parallel to a longitudinal axis thereof to form two portions angularly disposed to each other about the first fold line. An end of the calendar is located in a region between the portions and secured between …
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 April 30, 1996 and granted December 12, 2000. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended April 30, 2016.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by April 30, 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.