Granted Patent
Utility
US 5,345,811 · App. 07/861,664
Fluid density sensor and system
Inventors:
George Alexandrovich, Sr., Stanley Sporn, Stanley E. Wood
Patented Case
View Patent ↗
Granted: Sep 13, 1994
Filed: Apr 1, 1992
Inventors
George Alexandrovich, Sr.
Stanley Sporn
Stanley E. Wood
Assignee (at issue)
Parker-Hannifin 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.