Pride Toronto has filed a trademark application with the Canadian Intellectual Property Office for the terms "Dyke March and "Trans* Pride."
Vancouver Dyke March organizers call the move a hostile attempt to make money on merchandise that use the terms and say they will take action unless Pride Toronto withdraws the applications and apologizes.
Pride Toronto has since said it will work with lawyers to withdraw the trademark applications.
They say they initially filed the applications because an individual had threatened to file for the trademarks to gain control over the events.
Pride Toronto has a history of trademark applications, which includes successfully registering the term "pride" in 2003.