Multi-purpose doorjamb assembly
CA 2188854 C · Owner: Yoshida, Takeshi · Inventors: Yoshida, Takeshi
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A multi-purpose adjustable doorjamb assembly includes at least three elongate members: a first side member, a second side member, and a cross member. Each elongate member has an inside longitudinal face opposite an outside longitudinal face. Each face has a longitudinal notch defined therein. The first side member is attached to one end of the cross member and the second side member the second end of the cross member to form an open-sided rectangle. The assembly may also include at least three door stops that are insertable into corresponding notches in the inside faces of the elongate members. The jamb assembly may be used to accommodate swinging doors, bi-fold doors, or sliding doors. …
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 25, 1996 and granted March 14, 2000. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended October 25, 2016.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by October 25, 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.