DUOFONE Trademark
Serial Number: 73101700 • Registration: 1090022
DUOFONE is a trademark filed by
TANDY CORPORATION
on September 30, 1976. 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The application is currently no longer active.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
September 30, 1976
Registration Date
April 25, 1978
Filing History
EXPIRED SEC. 9
Feb 2, 1999 EXRG
EXPIRED SEC. 9
Feb 2, 1999 EXRG
REGISTERED - SEC. 8 (6-YR) ACCEPTED & SEC. 15 ACK.
Mar 12, 1984 C15A
REGISTERED - SEC. 8 (6-YR) ACCEPTED & SEC. 15 ACK.
Mar 12, 1984 C15A