Granted Patent
Utility
US 5,421,923 · App. 08/161,639
Ultrasonic welding horn with sonics dampening insert
Inventors:
Robert A. Clarke, Steven Neuenfeldt
Patented Case
View Patent ↗
Granted: Jun 6, 1995
Filed: Dec 3, 1993
Inventors
Robert A. Clarke
Steven Neuenfeldt
Assignee (at issue)
Baxter International Inc.
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.