Granted Patent
Utility
US 5,689,576 · App. 08/278,393
Surface feature mapping using high resolution C-scan ultrasonography
Inventors:
John K. Schneider, William E. Glenn
Patented Case
View Patent ↗
Granted: Nov 18, 1997
Filed: Jul 21, 1994
Inventors
John K. Schneider
William E. Glenn
Assignee (at issue)
Ultra-Scan 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.