Granted Patent
Utility
US 4,737,639 · App. 07/063,806
Energy and analysis detection system for surface chemical analysis
Inventor:
Thomas W. Rusch
Patented Case
View Patent ↗
Granted: Apr 12, 1988
Filed: Jun 24, 1987
Inventor
Thomas W. Rusch
Assignee (at issue)
PerkinElmer, 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.