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Northstar Awarded Patent by United States Patent and Trademark Office Protecting Its Front-end Process for Reprocessing Asphalt Shingles

VANCOUVER, BC, Nov. 8, 2022 /PRNewswire/ - Northstar Clean Technologies Inc. (TSXV:ROOF) (OTCQB:ROOOF) ("Northstar" or the "Company") is pleased to announce that it has been issued a patent for the