Expired Canadian patentCanada
Three panel reflector
CA 2083030 C · Owner: Bennett, Reginald B. · Inventors: Bennett, Reginald S.; Bennett, Reginald B.
Overview
Drawings and full text
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A reflector has 3 planar reflecting surfaces with the upper and lower surfaces each intersecting the central plane at 145° - 150°, each reflecting surface being composed of individually imperceptible cube corner reflectors.
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 November 16, 1992 and granted July 23, 2002. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended November 16, 2012.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by November 16, 2014.
- We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
FiledNovember 16, 1992
GrantedJuly 23, 2002
Term endedNovember 16, 2012
Patent numberCA 2083030 C
Classification (IPC)G02B5/12 +1 more
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.