![](/us.svg)
Trademark: 71569556
Status Date
Tuesday, November 3, 1992
Registration Number
0523174
Registration Date
Tuesday, March 28, 1950
Filing Date
Monday, November 29, 1948
26 APPARATUS FOR MEASURING AND RECORDING THE CALORIFIC VALUE OF GASES
Nov 3, 1992
Expired Sec. 9
Mar 28, 2070
Registered And Renewed (First Renewal - 20 Yrs)
Trademark Alertz updated from USPTO on 2030-01-24