Viscosity maintenance
CA 2218371 A1 · Owner: Markem Corporation · Inventors: Brown, Robert G.; Johannessen, Arne
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A device (18) for measuring relative viscosity includes an apparatus (29) that can be movably mounted within a fluid reservoir (12) and a sensing system. The apparatus has two members (32, 34), with one member being more bendable than the other. When the apparatus is moving the sensing system detects a , differential bend between the members; the differential bend is related to the viscosity of a fluid when the fluid is included in the fluid reservoir in which the apparatus is movably mounted. The sensing system includes two spaced sensors (40, 42) which detect when magnets (36 38) on the members pass the , sensors. A timer provides a time lapsed between passage of one member past a …
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 7, 1997. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended March 7, 2017.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by March 7, 2019.
- 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.