Granted Patent
Utility
US 4,647,281 · App. 06/703,326
Infiltration detection apparatus
Inventor:
Kenneth L. Carr
Patented Case
View Patent ↗
Granted: Mar 3, 1987
Filed: Feb 20, 1985
Inventor
Kenneth L. Carr
Assignee (at issue)
M/A-Com, 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.