Luminaire
CA 2310474 A1 · Owner: Entrop, Jean P. · Inventors: Entrop, Jean P.; Wijbenga, Hendrik
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
The luminaire has a concave reflector (2) including a light-emission window (3) and a plane of symmetry S transverse thereto. The reflector (2) has first opposing walls (21) which extend along the plane of symmetry S and second , opposing walls (26) which extend at right angles thereto and a top wall (27). , The top wall (27) has an opening (28) which is covered with a reflecting shade (30) having first faces (31) along the plane of symmetry S and second faces , (36) at right angles to the plane of symmetry S and a top face (37) opposite , the light-emission window (3). Means (4) are present to accommodate an electric lamp e.1. in the opening (28) and in the plane of symmetry S. 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 September 8, 1999. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended September 8, 2019.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by September 8, 2021.
- 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.