Method and system for analyzing a two-phase flow
CA 2204352 C · Owner: Foster-Miller, Inc. · Inventors: Hill, Wayne S.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A method of and system for analyzing a two-phase flow in a conduit (40) in which acoustic energy is transmitted through a conduit (40) and into the flow therein; return echoes are detected, one or more flow indicator quantities are computed from the return echoes; and the mass flow rate and/or the flow quality is determined from the computed flow indicator quantities.
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 October 31, 1995 and granted December 21, 1999. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended October 31, 2015.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by October 31, 2017.
- 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.