Granted Patent
Utility
US 4,198,022 · App. 05/885,405
Power cable guide for high-mast luminaire raising and lowering system
Inventors:
Jackie Everett Pletcher, Brady Johnson, Richard G. Armstrong
Patented Case
View Patent ↗
Granted: Apr 15, 1980
Filed: Mar 10, 1978
Inventors
Jackie Everett Pletcher
Brady Johnson
Richard G. Armstrong
Assignee (at issue)
Johns Manville
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.