PATENT OPPOSITION IN PAKISTAN
Pre-grant opposition in Pakistan
How to file pre-grant opposition in Pakistan?As per Section 23 of the Patent Ordinance 2000 (amended in 2002), at any time, within four months from the date of advertisement of the acceptance of a complete specification, any person may give notice of opposition to the Controller to the grant of Patent on limited grounds.
Post-grant opposition in Pakistan
How to file post-grant opposition in Pakistan?A post-grant opposition can be filed within one year after the grant of the patent by any interested person requesting the Controller revoke the . The Controller after hearing the patentee and the opponent may decide to maintain, revoke or amend the patent.
Sources: Patents Ordinance, 2000
http://islamabad.usembassy.gov/root/pdfs/ipr_patents.pdf
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