Granted Patent
Utility
US 4,404,288 · App. 06/371,635
Method and apparatus for concentrating a vapor of a mercury sample solution
Inventor:
Bernhard Huber
Patented Case
View Patent ↗
Granted: Sep 13, 1983
Filed: Apr 26, 1982
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.