In reference to the patent: WO2011002413A1
I found this European patent for an "Improved Umbrella Design." How can I find out if there is a USA patent on this design?
The application is deemed withdrawn, see here: https://register.epo.org/application?number=EP09846920&tab=main
Since there is no family member mentioned for the US (only TW) it is almost sure that there is no protection for this in the US.