Granted Patent
Utility
US 4,373,111 · App. 06/141,963
Service poles
Inventors:
John L. Myers, Richard D. Benscoter, Bruce B. Chambers, Ralph E. Dyar
Patented Case
View Patent ↗
Granted: Feb 8, 1983
Filed: Apr 21, 1980
Inventors
John L. Myers
Richard D. Benscoter
Bruce B. Chambers
Ralph E. Dyar
Assignee (at issue)
BUTLER MANUFACTURING COMPANY
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.