Granted Patent
Utility
US 5,652,427 · App. 08/645,826
Multipole ion guide for mass spectrometry
Inventors:
Craig M. Whitehouse, Erol Culcicek
Patented Case
View Patent ↗
Granted: Jul 29, 1997
Filed: May 14, 1996
Inventors
Craig M. Whitehouse
Erol Culcicek
Assignee (at issue)
Analytica of Branford, 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.