Granted Patent
Utility
US 4,878,721 · App. 07/014,998
Resonant mechanical system
Inventor:
Dean R. Paulsen
Patented Case
View Patent ↗
Granted: Nov 7, 1989
Filed: Feb 17, 1987
Inventor
Dean R. Paulsen
Assignee (at issue)
General Scanning, 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.