Canadian application, no grantCanada
Acoustically monitoring concrete vessels and structures
CA 2421979 A1 · Owner: Paulson, Peter O. · Inventors: Paulson, Peter O.
Overview
Drawings and full text
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
Microcracking in concrete structures is monitored acoustically. The resulting signals can be used to determine corrosion of metal reinforcing wires or rods or damage occurring from accident or seismic events.
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 September 25, 2001. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended September 25, 2021.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by September 25, 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.
FiledSeptember 25, 2001
GrantedNo grant recorded
Term endedSeptember 25, 2021
Patent numberCA 2421979 A1
Classification (IPC)G01V1/00 +2 more
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.