Granted Patent
Utility
US 5,708,845 · App. 08/536,107
System for mapping hot spots in media content for interactive digital media program
Inventors:
Douglass A. Wistendahl, Leighton K. Chong
Patented Case
View Patent ↗
Granted: Jan 13, 1998
Filed: Sep 29, 1995
Inventors
Douglass A. Wistendahl
Leighton K. Chong
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.