Granted Patent
Utility
US 4,482,413 · App. 06/528,307
Methods of and apparatus for forming strips of non-metallic and metallic material into tubular covers having overlapped seams
Inventors:
William D. Bohannon, Jr., Alfred Hamilton
Patented Case
View Patent ↗
Granted: Nov 13, 1984
Filed: Aug 31, 1983
Inventors
William D. Bohannon, Jr.
Alfred Hamilton
Assignee (at issue)
AT&T Technologies Incorporated
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.