Granted Patent
Utility
US 5,316,439 · App. 08/111,016
Noise cancellation device for centrifugal blower
Inventors:
William Stuart Gatley, Jr., Bobby D. Garrison
Patented Case
View Patent ↗
Granted: May 31, 1994
Filed: Aug 24, 1993
Inventors
William Stuart Gatley, Jr.
Bobby D. Garrison
Assignee (at issue)
Fasco Industries, 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.