Automatic threshold means and the use thereof
CA 1086417 A · Owner: Acoustic Emission Technology Corporation · Inventors: Morais, Carroll F.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A threshold actuated information detection system comprising a noise level converter, and a non-inverting voltage totalizer, and a voltage comparator interconnected such that the comparator will not trigger any logic circuit if an amplified signal is lower than the threshold level and the use thereof in, acoustic emission and other informational discriminating systems.
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
- Granted September 23, 1980. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended September 23, 1997.
- 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.