Public Trustee v Waikato Carbonisation Limited - [1950] NZLR 993

Patent — Agreement by Owners of Patent for Sale of Plant and Machinery — Construction — Implied Licence to use Patented Process — Duration of Periodic Payments in Nature of Royalty — Royalty not payable after Expiry of Last Patent to Survive — Patents, Designs, and Trade-marks Act, 1921–22, s 43 (3).