Wafer and method
CA 2420838 C · Owner: Lane, Benjamin · Inventors: Ginesi, Donald; Lipford, Brian; Hastings, Calvin R.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A wafer for placement in a pipe. The wafer includes a housing having an outer surface and an orifice adapted to allow fluid flowing in the pipe to pass through the housing. The housing has at least a first port extending into the housing from the outer surface for holding a first acoustic transducer. The wafer includes means for attaching the housing to the pipe. A method for obtaining information about fluid in a pipe.
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 March 4, 2003 and granted December 3, 2013. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended March 4, 2023.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by March 4, 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.
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.