Granted Patent
Utility
US 6,671,389 · App. 09/561,259
Method and system for detecting digital camera failure
Inventors:
Rex E. Marzke, Jeffrey J. Hawkins
Patented Case
View Patent ↗
Granted: Dec 30, 2003
Filed: Apr 27, 2000
Inventors
Rex E. Marzke
Jeffrey J. Hawkins
Assignee (at issue)
International Business Machines 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.