Expired Canadian patentCanada
Method and apparatus to monitor the compressive strength of insulation boards
CA 2536984 C · Owner: Bfs Diversified Products, Llc · Inventors: Tackett, Timothy; Letts, 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
A method for producing foam insulation board the method comprising forming a , foam product as part of a continuous process and monitoring on-line the , compressive strength of the foam product.
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 August 25, 2004 and granted July 23, 2013. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended August 25, 2024.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by August 25, 2026.
- We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
FiledAugust 25, 2004
GrantedJuly 23, 2013
Term endedAugust 25, 2024
Patent numberCA 2536984 C
Classification (IPC)B29C44/60 +1 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.