Canadian application, no grantCanada
Mineral fibre insulation
CA 2301260 A1 · Owner: Guldberg, Marianne · Inventors: Guldberg, Marianne; Jensen, Soren Lund
Overview
Drawings and full text
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
Pipe sections or external roof or wall cladding are formed of bonded man made vitreous fibre batts wherein the fibres have a viscosity at 1400 ~C of 10 to 170 poise and a dissolution rate at pH 4.5 of at least 20nm per day.
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 June 30, 1998. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended June 30, 2018.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by June 30, 2020.
- We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
FiledJune 30, 1998
GrantedNo grant recorded
Term endedJune 30, 2018
Patent numberCA 2301260 A1
Classification (IPC)C03C13/00 +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.