Granted Patent
Utility
US 4,740,356 · App. 06/821,651
Device for producing a gaseous measuring sample for atomic absorption spectroscopy
Inventor:
Bernhard Huber
Patented Case
View Patent ↗
Granted: Apr 26, 1988
Filed: Jan 23, 1986
Inventor
Bernhard Huber
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.