Granted Patent
Utility
US 4,474,889 · App. 06/371,617
Miniature gas chromatograph apparatus
Inventors:
Stephen C. Terry, John H. Jerman
Patented Case
View Patent ↗
Granted: Oct 2, 1984
Filed: Apr 26, 1982
Inventors
Stephen C. Terry
John H. Jerman
Assignee (at issue)
Microsensor Technology
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.