Granted Patent
Utility
US 4,904,503 · App. 07/102,171
Rapid setting cementitious fireproofing compositions and method of spray applying same
Inventors:
Dennis M. Hilton, Paul E. Korenberg, Suzanne Conroy
Patented Case
View Patent ↗
Granted: Feb 27, 1990
Filed: Sep 29, 1987
Inventors
Dennis M. Hilton
Paul E. Korenberg
Suzanne Conroy
Assignee (at issue)
W.R. Grace & Co. Conn.
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.