Granted Patent
Utility
US 4,707,628 · App. 06/896,536
Dynamoelectric machine roll back collector housing
Inventor:
Alan L. Obley
Patented Case
View Patent ↗
Granted: Nov 17, 1987
Filed: Aug 14, 1986
Inventor
Alan L. Obley
Assignee (at issue)
Westinghouse Electric Company LLC
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.