SPIRULE Trademark
Serial Number: 72142225 • Registration: 0742342
SPIRULE is a trademark filed by
WALTER R. EVANS
on April 13, 1962. The trademark is classified under Class 9 (Computers & Electronics).
The application is currently no longer active.
Trademark Classes
Owner Contact Info
WALTER R. EVANS
Entity Type: 98
Trademark Details
Filing Date
April 13, 1962
Registration Date
December 18, 1962
First Use Anywhere
April 30, 1951
First Use in Commerce
October 17, 1951
Goods & Services
CALCULATING DEVICE KNOWN AS THE ROOT LOCUS PLOTTER
Filing History
EXPIRED SEC. 9
Feb 1, 1988 EXRG
