Granted Patent
Utility
US 5,188,508 · App. 07/698,000
Compact fan and impeller
Inventors:
Peter D. Scott, Peter R. Bushnell
Patented Case
View Patent ↗
Granted: Feb 23, 1993
Filed: May 9, 1991
Inventors
Peter D. Scott
Peter R. Bushnell
Assignee (at issue)
Comair Rotron 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.