Canadian application, no grantCanada
Monitoring system for prestressed concrete pipes
CA 2332473 A1 · Owner: Pure Technologies Ltd. · Inventors: Paulson, Peter O.; Mcintyre, John
Overview
Drawings and full text
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
This invention relates to a method of non-destructive inspection of concrete conduits, reinforced with metal wires, and to apparatus for carrying out such inspections.
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 29, 2001. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended January 29, 2021.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by January 29, 2023.
- We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
FiledJanuary 29, 2001
GrantedNo grant recorded
Term endedJanuary 29, 2021
Patent numberCA 2332473 A1
Classification (IPC)G01N27/90
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.