Granted Patent
Utility
US 5,401,552 · App. 08/187,835
Geocomposite liner
Inventors:
John L. Bohrer, Harald Unger
Patented Case
View Patent ↗
Granted: Mar 28, 1995
Filed: Jan 28, 1994
Inventors
John L. Bohrer
Harald Unger
Assignee (at issue)
SLT Environmental, 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.