Granted Patent
Utility
US 6,477,513 · App. 08/832,832
Method and apparatus for executing cryptographically-enabled letters of credit
Inventors:
Jay S. Walker, Bruce Schneier
Patented Case
View Patent ↗
Granted: Nov 5, 2002
Filed: Apr 3, 1997
Inventors
Jay S. Walker
Bruce Schneier
Assignee (at issue)
Walker Digital, 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.