A protective element for covering the light exit surface on an optical component in particular on an optical plug
CA 2299159 A1 · Owner: Volpi, Franco · Inventors: Volpi, Franco
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
The protective element, for example the protective cap (4) on an optical plug part (1) consists of a plastic material which is enriched with a black filler absorbing the light irradiation. With this it may be the case for example of carbon fibres. Such a protective element forms a reliable blockage against exiting light, which behaves roughly similar to a protective element of similar dimensions of metal.
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 February 23, 2000. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended February 23, 2020.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by February 23, 2022.
- 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.