MUMBAI, India, June 27 -- Intellectual Property India has published a patent application (202331081743 A) filed by Metal & Steel Factory, Ishapore, West Bengal, on Dec. 1, 2023, for 'process of manufacturing of steel up-setted cups from round steel blanks of desired diameter and thickness using cold reverse extrusion process.'
Inventor(s) include Rahul Mishra; and N. B. Das.
The application for the patent was published on June 27, under issue no. 26/2025.
According to the abstract released by the Intellectual Property India: "This invention is related to the field of cold extrusion process followed by multi stage cold draws operations along with inter stage heat treatment (annealing) to manufacture steel cartridge cases for making ammuni...