Granted Patent
Utility
US 4,599,609 · App. 06/678,538
Personal liquid chemical agent detector
Inventor:
William C. Blanchard
Patented Case
View Patent ↗
Granted: Jul 8, 1986
Filed: Dec 5, 1984
Inventor
William C. Blanchard
Assignee (at issue)
ALLIED CONSULTING, 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.