Granted Patent
Utility
US 4,388,029 · App. 06/140,264
Conditioning apparatus for case metal bars
Inventors:
Helmut Durr, George E. Mock
Patented Case
View Patent ↗
Granted: Jun 14, 1983
Filed: Apr 14, 1980
Inventors
Helmut Durr
George E. Mock
Assignee (at issue)
Western Electric Company, 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.