Laser light transmissible substance and producing method thereof
CA 2005299 A1 · Owner: S.L.T. Japan Co. Ltd. · Inventors: Daikuzono, Norio
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
Laser Light Transmissible Substance, and Producing Method thereof, Abstract of the Disclosure A laser light transmissible substance used in case of medical treatment as a probe. It has a laser light transmissible member the surface thereof is preferably roughened covered with a surface layer including laser light absorbing particles light scattering, particles having a larger refractive index than that of said transmissible member and preferably a binder. Laser light emitted therefrom is reflected and refracted irregularly. The producing method thereof comprising forming the transmissible member covered with the surface layer by the contact made between the transmissible member and a …
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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 12, 1989. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended December 12, 2009.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by December 12, 2011.
- 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.