Reinforcement rings
CA 1320518 C · Owner: Taylor, Geoffrey L. · Inventors: Taylor, Geoffrey L.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A page reinforcement ring is a sheet of tearresistant material with two spaced ring-receiving holes in it. A slit in the sheet extends between the two holes and is offset to one side of the holes. The reinforcement ring is applied to the edge of a ring binder page by folding the reinforcement ring around the edge of the page, arranging it with the holes in the reinforcement ring aligned with a binder ring hole in the page and then secured in place with an adhesive. Once the page has been slit in line with the slit in the sheet of tearresistant material, the page can be placed on or removed from the ring binder ring without opening or closing the ring.
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 July 20, 1993. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended July 20, 2010.
- 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.