A cover
CA 2465666 A1 · Owner: Ullyett, Gordon Jeffrey · Inventors: Ullyett, Gordon Jeffrey
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A retractable cover which includes a flexible material portion characterised in that the flexible material includes at least one biasing means. In preferred embodiments the biasing means is a spring either constant or varied , force that allows the flexible material to be rolled up. The retractable cover is particularly applicable to tents or temporary structures but could also be , applied to window covers awnings, truck sidings boat canopies or the like.
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 October 31, 2002. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended October 31, 2022.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by October 31, 2024.
- 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.