Granted Patent
Utility
US 4,831,806 · App. 07/162,088
Free floating floor system
Inventors:
Michael W. Niese, James H. Stoehr
Patented Case
View Patent ↗
Granted: May 23, 1989
Filed: Feb 29, 1988
Inventors
Michael W. Niese
James H. Stoehr
Assignee (at issue)
Robbins, 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.