Compression molded door assembly
CA 2189090 C · Owner: Nan Ya Plastics Corporation · Inventors: Chen Wang, Kuei Yung
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A door according to this to this invention is formed from two rectangular compression molded skins with each skin having inside surface and an outside surface and on its inside surface a plurality of projecting, parallel ribs along at least two of its edges a hinge support, having a plurality of grooves on its opposite sides with the grooves operable to interlock with the ribs of the skins along one side of the door when the skins are assembled with this support and an accessory support having a plurality of grooves on its opposite sides operable to interlock the ribs of the skins along the other side of the door when the skins are assembled therewith whereby no frame is required for 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 October 29, 1996 and granted March 21, 2000. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended October 29, 2016.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by October 29, 2018.
- 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.