Granted Patent
Utility
US 4,573,757 · App. 06/707,178
Transformer bushing
Inventors:
John Cochran, Herbert J. Macemon
Patented Case
View Patent ↗
Granted: Mar 4, 1986
Filed: Mar 1, 1985
Inventors
John Cochran
Herbert J. Macemon
Assignee (at issue)
Kuhlman 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.