Trademark Overview
On Friday, June 4, 1948, a trademark application was filed for SPIREX with the United States Patent and Trademark Office. The USPTO has given the SPIREX trademark a serial number of 71558502. The federal status of this trademark filing is EXPIRED as of Tuesday, November 3, 1992. This trademark is owned by NATIONAL CYLINDER GAS COMPANY. The SPIREX trademark is filed in the Environmental Control Instrument Products category with the following description:
NOZZLE ELEMENTS FOR GAS PRESSURE REGULATORS