Granted Patent
Utility
US 6,284,198 · App. 09/163,528
Self appearing warning sign device and method of manufacture
Inventors:
Kirollos Salama Kirollos, Gueorgui M. Mihaylov
Patented Case
View Patent ↗
Granted: Sep 4, 2001
Filed: Sep 30, 1998
Inventors
Kirollos Salama Kirollos
Gueorgui M. Mihaylov
Assignee (at issue)
K & M Environmental, 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.