Granted Patent
Utility
US 4,904,606 · App. 07/253,550
Method and apparatus for reductive decomposition and analysis of a sample
Inventors:
Alan R. Forster, Gregory J. Kamla
Patented Case
View Patent ↗
Granted: Feb 27, 1990
Filed: Sep 28, 1988
Inventors
Alan R. Forster
Gregory J. Kamla
Assignee (at issue)
SHELL OIL COMPANY
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.