Trademark Filing and Trademark Application Process. The trademark registration process begins with filing an application with the trademark office.This article will guide you through the step-by-step process of filing a trademark in Pakistan. Trademarks in Pakistan can be filed for a single class only. Multi class trade mark applications cannot be filed. Experienced trademark attorneys working with Sacramento, California companies and businesses. Free Consultations and Flat Fee Pricing. Under Section 73 of the Ordinance, you (or a party you authorize) must begin using the mark within five years of your mark's registration with the registry. All trade marks undergo the same procedures as set out in the Trade Marks Ordinance and the Trade Marks Rules, 2004. 4.2 Trade Mark Register.