Granted Patent
Utility
US 6,485,224 · App. 09/759,003
Traffic barrier apparatus with gate
Inventors:
Gerrit A. Dyke, Jack S. Mazer
Patented Case
View Patent ↗
Granted: Nov 26, 2002
Filed: Jan 11, 2001
Inventors
Gerrit A. Dyke
Jack S. Mazer
Assignee (at issue)
Barrier 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.