Canadian application, no grantCanada
Corrosion resistant ultrasonic horn
CA 2488134 A1 · Owner: Sulphco, Inc. · Inventors: Gunnerman, Rudolf W.
Overview
Drawings and full text
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
Ultrasonic horns (11) of titanium (14, 17) are made corrosion resistant in aqueous media by providing the horns with a silver _(18 23) end surface (19, 24), either as a portion of the end surface or as the entire end surface.
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 26, 2003. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended November 26, 2023.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by November 26, 2025.
- We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
FiledNovember 26, 2003
GrantedNo grant recorded
Term endedNovember 26, 2023
Patent numberCA 2488134 A1
Classification (IPC)H03H9/00 +1 more
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.