Granted Patent
Utility
US 4,607,268 · App. 06/730,175
Multiple needle recording electrode
Inventors:
Martin Pointner, Ruediger Sommer
Patented Case
View Patent ↗
Granted: Aug 19, 1986
Filed: May 3, 1985
Inventors
Martin Pointner
Ruediger Sommer
Assignee (at issue)
Dr. Ing. Rudolf Hell GmbH
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.