Granted Patent
Utility
US 4,235,688 · App. 05/919,600
Salt bridge reference electrode
Inventors:
Leon P. Sudrabin, Stephen F. Billets, Van Dyke J. Pollitt, Lubomyr Liszczynsky
Patented Case
View Patent ↗
Granted: Nov 25, 1980
Filed: Jun 27, 1978
Inventors
Leon P. Sudrabin
Stephen F. Billets
Van Dyke J. Pollitt
Lubomyr Liszczynsky
Assignee (at issue)
Pennwalt 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.