Expansion pocket
CA 2108446 C · Owner: Eagle, Opg, Inc. · Inventors: Walters, Robert N.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
An expansion pocket is provided for use with folders binders or the, like which allows large quantities of materials to be securely inserted into theexpansion pocket. The expansion pocket cover member is provided with a series of slits which run along the two adjacent edges of the cover member secured to the folder or ring binder, along with a relief cut-out made in the cover member at the corner defined by these two adjacent sides.
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 October 14, 1993 and granted December 15, 1998. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended October 14, 2013.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by October 14, 2015.
- 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.