Granted Patent
Utility
US 6,282,910 · App. 09/598,505
Indoor blower variable speed drive for reduced airflow
Inventor:
Robert W. Helt
Patented Case
View Patent ↗
Granted: Sep 4, 2001
Filed: Jun 21, 2000
Inventor
Robert W. Helt
Assignee (at issue)
American Standard International 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.