Granted Patent
Utility
US 4,992,726 · App. 07/431,356
Woven crossed-coil air-core gauge
Inventors:
Paul A. Markow, William Nolle
Patented Case
View Patent ↗
Granted: Feb 12, 1991
Filed: Oct 27, 1989
Inventors
Paul A. Markow
William Nolle
Assignee (at issue)
Acustar, 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.