Inflatable umbrella
CA 1109765 A · Owner: Ross, Sharon · Inventors: Ross, Peter; Ross, Sharon
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
An umbrella having a shaft and ribs extending therefrom for supporting a canopy in an open condition thereof the, improvement in which said shaft and ribs are in fluid communication with each other, are hollow, and are formed from a flexible gas impervious solid material and means are provided for releasably inflating said shaft and ribs to open said umbrella.
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
- Granted September 29, 1981. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended September 29, 1998.
- 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.