Granted Patent
Utility
US 5,748,509 · App. 08/495,054
Analysing a material sample
Inventor:
Paul Fewster
Patented Case
View Patent ↗
Granted: May 5, 1998
Filed: Jun 26, 1995
Inventor
Paul Fewster
Assignee (at issue)
U.S. Philips 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.