Serial Number
98677553
Owner
D4D GroupAttorney
William E OBrienFirst Use Date
Jan 1, 2026
Filing Date
Aug 1, 2024
CLOCKCHAIN Trademark
Serial Number: 98677553
Trademark Classes
Owner Contact Info
Legal Representation
Correspondence Address
William E OBrien OBrien Global Law
2 Connector Rd., Suite 200
Westborough, MA 01581
United States
Trademark Details
Filing Date
August 1, 2024
Registration Date
Not Registered
First Use Anywhere
January 1, 2026
First Use in Commerce
January 1, 2026
Published for Opposition
August 26, 2025
Goods & Services
Electronic document time-stamping services using blockchain technology