在1992年夏天加拿大联邦议会休会前,政府部门颁布了药品新的专利许可法,从而结束了强制性药物许可,对有商标的药品制造商的新产品提供20年的专利保护。凡在清单上的新产品增加3年有效期, Prior to the adjournment of the Canadian Federal Parliament in the summer of 1992, the government authorities enacted a new drug licensing law that ended the compulsory drug license and provided 20 years of patent protection for new products manufactured by trademarked drug manufacturers. Where the new product on the list increased by 3 years,