LOCK & LEARN Trademark

Serial Number: 72250862 • Registration: 0846055

LOCK & LEARN is a trademark filed by POTOMAC ENGINEERING CORPORATION on July 22, 1966. The trademark is classified under Class 28 (Toys & Sporting Goods). The application is currently no longer active.

Trademark Classes

Class 28 - Toys & Sporting Goods

Games and playthings; gymnastic and sporting articles; decorations for Christmas trees

Owner Contact Info

POTOMAC ENGINEERING CORPORATION (2 trademarks)

CHICAGO, IL 60611

Entity Type: 03

Trademark Details

Filing Date

July 22, 1966

Registration Date

March 12, 1968

First Use Anywhere

July 11, 1966

First Use in Commerce

July 11, 1966

Filing History

EXPIRED SEC. 9

Nov 3, 1992 EXRG

EXPIRED SEC. 9

Nov 3, 1992 EXRG

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