Synthetic resin window for automotive vehicles or the like
CA 2024159 C · Owner: Hashimoto Forming Industry Co. Ltd. · Inventors: Ohtake, Shinichi; Tamura, Tatsuya; Hotta, Tetsuo
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A synthetic resin window, e.g. for automotive vehicles, includes a window body member in the form of a sheet of transparent or semi-transparent synthetic resin, a hard coated layer covering and fusion-bonded to at the outer surface of the window body member a frame, member of a synthetic resin formed integrally with the body member to extend along peripheral edge thereof and, connection between the frame member and the outer surface of the window body member. The connection may include a core element which is integrally connected to the window body member in a form-locking manner from outer and inner sides thereof, and at least partly embedded in said frame member. Alternatively the, …
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 August 28, 1990 and granted July 22, 1997. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended August 28, 2010.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by August 28, 2012.
- 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.