Granted Patent
Utility
US 3,967,352 · App. 05/587,644
Method for making a scroll type housing for a centrifugal blower
Inventor:
Kenneth Reed Crowe
Patented Case
View Patent ↗
Granted: Jul 6, 1976
Filed: Jun 17, 1975
Inventor
Kenneth Reed Crowe
Assignee (at issue)
Torin Corporation
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.