Granted Patent
Utility
US 5,244,532 · App. 07/945,220
Ultrasonic anvil cartridge
Inventors:
Christopher S. Wadium, Robert G. Kelley
Patented Case
View Patent ↗
Granted: Sep 14, 1993
Filed: Sep 15, 1992
Inventors
Christopher S. Wadium
Robert G. Kelley
Assignee (at issue)
Stone Container Corporation
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.