Granted Patent
Utility
US 4,426,244 · App. 06/413,445
Cooling device for ultrasonic horns
Inventor:
Kenneth Y. Wang
Patented Case
View Patent ↗
Granted: Jan 17, 1984
Filed: Aug 31, 1982
Inventor
Kenneth Y. Wang
Assignee (at issue)
Burlington Industries LLC
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.