Granted Patent
Utility
US 5,443,667 · App. 08/255,293
Device and method for splicing tire tread strip edges using traversing ultrasonic transducers
Inventors:
Ira L. Wood, Wayne A. Wurzbacher
Patented Case
View Patent ↗
Granted: Aug 22, 1995
Filed: Jun 7, 1994
Inventors
Ira L. Wood
Wayne A. Wurzbacher
Assignee (at issue)
Bridgestone Firestone
This patent predates the USPTO's electronic file wrapper — prosecution documents from this era exist only in the Patent Office's paper records. A certified copy of the file history can be ordered from the USPTO's paper archives.