Methods and apparatuses for fitting eyewear
CA 2124346 C · Owner: Kremer, Thomas J. · Inventors: Kremer, Thomas J.; Ziegler, Thomas J.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
Methods are provided for fitting an eyeglass frame to a wearer. The methods include the steps of providing frames which have been classified into predetermined temple to temple size ranges based on the temple to temple frame sizes of the frames. The wearer's temple to temple head size is measured using a device which indicates at least one temple to temple size range as corresponding to the wearer. Eyeglass frames are fitted to the wearer selected from the frames which fall within the temple to temple size ranges corresponding to the wearer. There is also provided a frame measurement platform for measuring the perpendicular distance between the two temples of an open eyeglass frame and a, …
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 December 31, 1992 and granted March 23, 1999. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended December 31, 2012.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by December 31, 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.
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.