Serial Number
74300450
Owner
ALDS, Assistive Listening Device Systems Inc.First Use Date
Feb 28, 1992
Filing Date
Aug 3, 1992
PORTA-IR Trademark
Serial Number: 74300450 • Registration: 1789253
Trademark Classes
Owner Contact Info
Richmond, British Columbia, V6X 3E1 , CA
Entity Type: 03
Trademark Details
Filing Date
August 3, 1992
Registration Date
August 24, 1993
First Use Anywhere
February 28, 1992
First Use in Commerce
June 25, 1992
Published for Opposition
June 1, 1993
Cancellation Date
December 23, 2000
Goods & Services
portable infrared transmitter for the hard of hearing