Canadian application, no grantCanada
Door sill composition
CA 2059504 A1 · Owner: Unruh, Kirby L. · Inventors: Unruh, Kirby L.; Unruh, Kirby L.
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 door sill is provided with a core which comprises a form made from spun glass fibers treated with a polyester resin. The form is coated by an ultraviolet stable cladding.
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 16, 1992. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended January 16, 2012.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by January 16, 2014.
- 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 16, 1992
GrantedNo grant recorded
Term endedJanuary 16, 2012
Patent numberCA 2059504 A1
Classification (IPC)E06B1/70 +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.