PROM-BLOCK
DEAD
Serial Number
72437376
Owner
HOUSTON ENGINEERING RESEARCH CORPORATIONFirst Use Date
Jul 6, 1971
Filing Date
Oct 2, 1972
PROM-BLOCK Trademark
Serial Number: 72437376 • Registration: 1007597
PROM-BLOCK is a trademark filed by
HOUSTON ENGINEERING RESEARCH CORPORATION
on October 2, 1972. The trademark is classified under Class 9 (Computers & Electronics).
The application is currently no longer active.
Trademark Classes
Owner Contact Info
Trademark Details
Filing Date
October 2, 1972
Registration Date
March 25, 1975
First Use Anywhere
July 6, 1971
First Use in Commerce
May 1, 1972
Filing History
EXPIRED SEC. 9
Dec 26, 1995 EXRG
EXPIRED SEC. 9
Dec 26, 1995 EXRG
REGISTERED - SEC. 8 (6-YR) ACCEPTED
May 26, 1981 8.OK
REGISTERED - SEC. 8 (6-YR) ACCEPTED
May 26, 1981 8.OK
