Granted Patent
Utility
US 4,244,099 · App. 06/002,807
Method of making an electric rotating machine
Inventor:
Arthur W. Haydon
Patented Case
View Patent ↗
Granted: Jan 13, 1981
Filed: Jan 11, 1979
Inventor
Arthur W. Haydon
Assignee (at issue)
TRI-TECH 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.