Canadian application, no grantCanada
Method and apparatus utilizing a single nozzle for effecting measurement of steam characteristics
CA 2056255 A1 · Owner: Chien, Sze-Foo · Inventors: Chien, Sze-Foo
Overview
Drawings and full text
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
D# 79,365-F A system for measuring steam flowing through a convergent-divergent nozzle at critical flow uses selected measurements along with Napier's Parameter Dimensionless, Critical Steam Flux and Critical Density Ratio to determine steam quality and flow rate.
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, 1991. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended November 26, 2011.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by November 26, 2013.
- 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, 1991
GrantedNo grant recorded
Term endedNovember 26, 2011
Patent numberCA 2056255 A1
Classification (IPC)G01F1/42
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.