Granted Patent
Utility
US 5,525,295 · App. 07/937,211
Barrier isolation system
Inventors:
Irving J. Pflug, Allan B. Larson, Hans L. Melgaard
Patented Case
View Patent ↗
Granted: Jun 11, 1996
Filed: Aug 27, 1992
Inventors
Irving J. Pflug
Allan B. Larson
Hans L. Melgaard
Assignees (at issue)
Despatch Industries Limited Partnership
TL Systems Corporation
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.