Granted Patent
Utility
US 5,775,431 · App. 08/712,274
Dry sprinkler arrangements
Inventor:
Jiri Ondracek
Patented Case
View Patent ↗
Granted: Jul 7, 1998
Filed: Sep 11, 1996
Inventor
Jiri Ondracek
Assignee (at issue)
The Reliable Automatic Sprinkler Co. 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.