Frame
CA 2038253 C · Owner: Komamura, Takeo · Inventors: Komamura, Takeo
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A frame, including a plurality of frame elements and at least one connecting corner element on which the frame elements are mounted in intersected relation is provided. Its readily accessed enclosure can accommodate therein an article, a glass plate to allow viewing of the article a, backing plate at the rear, and an illumination louver. At least one of the frame elements is mounted to the connecting corner element for relative angular movement therebetween, to facilitate easy opening of the enclosure and access to the space defined therein.
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 March 14, 1991 and granted January 4, 2000. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended March 14, 2011.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by March 14, 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.