Differential curvature transducer
CA 2331017 A1 · Owner: Coutsomitros, Constantin · Inventors: Coutsomitros, Constantin; Koltsakis, Efthymios
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
This invention refers to a differential transducer for measuring the curvature variations of a surface such as a surface of a diaphragm (5). According to the invention it comprises: an assembly of two L-shaped optical elements (6 7) , whose first legs (8) are intended to be mounted on the surface in such a way that the outer faces of both second legs (9) which face each other and which , are made from transparent material extend substantially in parallel to each other and at a right angle away from said surface an optical cavity (19) , being defined there-between a laser source (17) whose beam (16) is intended to be directed parallelly to said surface onto said assembly and …
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 May 26, 1999. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended May 26, 2019.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by May 26, 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.