ALEXANDRIA, Va., May 19 -- United States Patent no. 12,631,297, issued on May 19, was assigned to AMTROL LICENSING INC. (West Warwick, R.I.).
"Handle for a portable cylinder" was invented by Carlos Aguiar (Oporto, Portugal), Pedro Alexandre Queiros Oliveira Silva Vieira (Matosinhos, Portugal) and Tiago Teixeira Rego De Oliveira (Oporto, Portugal).
According to the abstract* released by the U.S. Patent & Trademark Office: "Provided is a portable cylinder including a tank having a mounting collar coupled to an upper portion of the tank, and a handle assembly attached to the mounting collar. The mounting collar has an upwardly extending portion and a plurality of circumferentially spaced tabs extending radially outwardly from the upwardly ex...