Granted Patent
Utility
US 6,328,934 · App. 09/242,518
Device for detection of when a test probe gets into contact with a liquid surface
Inventors:
Arne Ljung, Juhan Kivineeme
Patented Case
View Patent ↗
Granted: Dec 11, 2001
Filed: Jan 5, 2000
Inventors
Arne Ljung
Juhan Kivineeme
Assignee (at issue)
Pharmacia AB
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.