Light reflector for growing plants
CA 2035938 A1 · Owner: Earnshaw, John · Inventors: Earnshaw, John
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A light reflector includes a plurality of opaque generally triangular panels connected together to form a three dimensional geometric figure surrounding an inside space. Each panel has a reflective surface facing the inside space and each corner of each of the panels is adjacent a corner of an adjacent panel. The panels are spaced apart from each other by rectangular, open areas. An artifical light source is placed inside the inside space. The reflective surfaces reflect light from the artificial light source and direct reflected light toward the rectangular open areas. Plants are situated adjacent the rectangular open areas and receive light emanating therefrom. B938/380
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 February 7, 1991. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended February 7, 2011.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by February 7, 2013.
- 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.