Granted Patent
Utility
US 4,739,835 · App. 06/877,053
Quick response glass bulb sprinkler
Inventors:
George S. Polan, Hermann R. Glinecke
Patented Case
View Patent ↗
Granted: Apr 26, 1988
Filed: Jun 23, 1986
Inventors
George S. Polan
Hermann R. Glinecke
Assignee (at issue)
CENTRAL SPRINKLER CORPORATION
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.