Granted Patent
Utility
US 4,960,258 · App. 07/325,519
Adjustable sign holder system
Inventors:
Harold L. Stocker, William H. Farr
Patented Case
View Patent ↗
Granted: Oct 2, 1990
Filed: Mar 17, 1989
Inventors
Harold L. Stocker
William H. Farr
Assignee (at issue)
Razz Communications, 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.