Universal pressure measurement interface
CA 2035260 A1 · Owner: Horwitz, Daniel · Inventors: Horwitz, Daniel
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
55,335, ABSTRACT OF THE DISCLOSURE, A universal pressure measurement interface ("UPMI") according to the invention enables interfacing of a multiplicity of pressure transmitters to a data acquisition system. The UPMI provides the necessary DC power and signal flow for field test measurements and is suitable for direct application in various sites with line voltages of from 100 to 240 VAC at 50-60 Hz.
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 January 30, 1991. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended January 30, 2011.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by January 30, 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.
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.