Granted Patent
Utility
US 5,561,801 · App. 08/171,984
System and method for multilevel promotion
Inventors:
Joshua E. Simons, James L. Frankel
Patented Case
View Patent ↗
Granted: Oct 1, 1996
Filed: Dec 23, 1993
Inventors
Joshua E. Simons
James L. Frankel
Assignee (at issue)
Thinking Machines, LLC
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.