Amalgam-doped mercury low-pressure uv irradiator
CA 2438613 C · Owner: Sief, Rolf · Inventors: Fischer, Joachim; Riepe, Dirk; Sief, Rolf
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A UV lamp unit includes a lamp in the form of a mercury low pressure amalgam lamp , that is provided with at least one amalgam deposit. A cladding tube surrounds the lamp in , such a way that an air gap is provided between the lamp and the cladding tube. An element is , provided in an axial direction of the lamp in the region of the at least one , amalgam deposit for influencing the temperature of the amalgam.
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 November 13, 2002 and granted May 3, 2011. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended November 13, 2022.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by November 13, 2024.
- 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.