Roof beams
CA 2532901 A1 · Owner: Richardson, Christopher · Inventors: Richardson, Christopher
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A roof beam for constructing a conservatory roof comprises a glazing bar (10) and upper and lower dcapping (12, 14/50) thereon. The glazing bar has a cross bar, (16) having trough formations (26) at each end whereby there is a recess , under the, cross bar. The cross bar can therefore, accommodate both a lower capping (14) for, a transom roof beam and a lower capping (50) for a hipped conservatory roof end.
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 March 9, 1998. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended March 9, 2018.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by March 9, 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.
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.