Granted Patent
Utility
US 5,664,630 · App. 08/227,430
Extended coverage ceiling sprinklers and systems
Inventors:
George G. Meyer, Stephen J. Meyer, George S. Polan
Patented Case
View Patent ↗
Granted: Sep 9, 1997
Filed: Apr 14, 1994
Inventors
George G. Meyer
Stephen J. Meyer
George S. Polan
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.