Granted Patent
Utility
US 5,571,949 · App. 08/502,832
Leak detection device and components therefor
Inventor:
Donald N. MacLaughlin
Patented Case
View Patent ↗
Granted: Nov 5, 1996
Filed: Jul 14, 1995
Inventor
Donald N. MacLaughlin
Assignee (at issue)
Packaging Resources Incorporated
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.