Are there any limitations or processes for using a patent in Canada that is registered only in the US?

Are there any liability issues? Would I be infringing?

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    A patent for the US applies to the manufacture, sale, offer to sale, or use in the United States. If all of these activities are going to happen outside the US, then the US patent is not relevant. You should probably check to ensure that there is not a PCT application filed for this patent family. Canada is unusual in that it allows entry into Canada from the PCT process 42 months after the original filing date. You should have competent patent counsel check the Canadian patent data files to ensure that there is not a sibling application or another application from a third party. – Kevin E Flynn Jul 15 '16 at 18:04
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    @KevinEFlynn Your comment is a perfectly reasonable answer. I would encourage you to post is as such. Comments are not permanent. – Eric Shain Mar 19 '17 at 15:40

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