Serial Number
73100436
Owner
Challenge Game CompanyFirst Use Date
Nov 7, 1975
Filing Date
Sep 20, 1976
SPHINX Trademark
Serial Number: 73100436 • Registration: 1078991
Trademark Classes
Owner Contact Info
Trademark Details
Filing Date
September 20, 1976
Registration Date
December 6, 1977
First Use Anywhere
November 7, 1975
First Use in Commerce
November 7, 1975
Cancellation Date
May 1, 1984