Granted Patent
Utility
US 5,534,301 · App. 08/438,378
Method for producing cellulose insulation materials using liquid fire retardant compositions
Inventor:
Thomas C. Shutt
Patented Case
View Patent ↗
Granted: Jul 9, 1996
Filed: May 10, 1995
Inventor
Thomas C. Shutt
Assignee (at issue)
Echochem 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.