Granted Patent
Utility
US 6,186,744 · App. 09/097,561
Volumetric airflow indicator and control device
Inventor:
Mark C. Wolochuk
Patented Case
View Patent ↗
Granted: Feb 13, 2001
Filed: Jun 15, 1998
Inventor
Mark C. Wolochuk
Assignee (at issue)
Synetics Solutions, 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.