Granted Patent
Utility
US 5,652,522 · App. 08/531,880
Dielectric-loaded surface-condition sensor and method
Inventors:
Ronald Kates, Jennifer M. Butler
Patented Case
View Patent ↗
Granted: Jul 29, 1997
Filed: Sep 21, 1995
Inventors
Ronald Kates
Jennifer M. Butler
Assignee (at issue)
HUGHES ELECTRONICS LIMITED
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.