Granted Patent
Utility
US 6,313,829 · App. 09/184,104
Edge treatment method for ultrasonic wave absorption
Inventors:
Thomas L. Tolt, Terence J. Knowles
Patented Case
View Patent ↗
Granted: Nov 6, 2001
Filed: Nov 2, 1998
Inventors
Thomas L. Tolt
Terence J. Knowles
Assignee (at issue)
Whitaker & Company
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.