James M. Spencer, Jr., Doing Business as Hurricane Marine Products v. Vdo Instruments, Limited

Plaintiff-appellant registered in the United States Patent Office a trade-mark on “Sum Log,” a combined nautical speedometer and mileage recorder, which was invented by a Swedish inventor named Rune Kock. This suit was filed to restrain defendants from using this trade-mark and to recover damages for trade-mark infringement and breach of contract. Defendants filed counterclaims for declaratory judgment, seeking to declare void the registration of this trademark by plaintiff, and also sued for injunctive relief and damages arising from an embargo caused by the trade-mark registration.

District…