Granted Patent
Utility
US 5,263,723 · App. 07/691,283
Interactive contest system
Inventors:
Timothy Raymond Pearson, William Junkin
Patented Case
View Patent ↗
Granted: Nov 23, 1993
Filed: Apr 25, 1991
Inventors
Timothy Raymond Pearson
William Junkin
Assignee (at issue)
Wakeman & deForrest Corporation
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.