50 60 70 80 Trademark
Serial Number: 74510333 • Registration: 1888949
Trademark Classes
Owner Contact Info
Legal Representation
Trademark Details
Filing Date
April 8, 1994
Registration Date
April 11, 1995
Published for Opposition
January 17, 1995
Cancellation Date
April 20, 2002
Goods & Services
development and dissemination of educational materials used in elementary, middle, and high schools to teach energy management and conservation in the fields of heating, ventilation, air conditioning, and lighting