Edge strip
CA 2066463 C · Owner: Webb, Wayne K. · Inventors: Webb, Wayne K.; Lillicrap, Damian G.; Schonfeldt, Martin K.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
The invention relates to an edge strip for a cathode plate. The edge strip comprises a non-inflatable elongate body of a thermoplastic material which body includes a longitudinal opening to accommodate an edge of the cathode plate and at least one continuous longitudinal internal groove on an inside surface of the opening.
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 21, 1992 and granted November 30, 1999. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended April 21, 2012.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by April 21, 2014.
- 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.