Granted Patent
Utility
US 6,478,506 · App. 09/689,474
Roadway pavement marker
Inventors:
Richard R. Figlewicz, Guenter Manigel
Patented Case
View Patent ↗
Granted: Nov 12, 2002
Filed: Oct 12, 2000
Inventors
Richard R. Figlewicz
Guenter Manigel
Assignee (at issue)
ENERGY ABSORPTION SYSTEMS, 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.