Book binding reinforcement
CA 1324626 C · Owner: Barnette, Charles J. · Inventors: Barnette, Charles J.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
An apparatus and technique for strengthening and reinforcing book bindings. A laminate having a polyester face sheet is coated on one side with adhesive. A backing sheet is releasably secured to the adhesive. The backing sheet is split down the center thereof to define a removable center strip with adjacent side strips on each side thereof. These three strips facilitate the method of application of the laminate to reinforce and secure a book binding.
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 November 23, 1993. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended November 23, 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.