Granted Patent
Utility
US 3,934,541 · App. 05/407,797
Triangular folding reflective traffic marker
Inventors:
Louis May, Edmund M. Idzik
Patented Case
View Patent ↗
Granted: Jan 27, 1976
Filed: Oct 19, 1973
Inventors
Louis May
Edmund M. Idzik
Assignee (at issue)
Sate-Life Mfg. Co.
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.