Granted Patent
Utility
US 5,383,314 · App. 08/095,017
Drainage and support mat
Inventor:
Henry M. Rothberg
Patented Case
View Patent ↗
Granted: Jan 24, 1995
Filed: Jul 19, 1993
Inventor
Henry M. Rothberg
Assignee (at issue)
Laticrete International, 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.