Granted Patent
Utility
US 6,743,390 · App. 09/973,351
Stress release method
Inventors:
Robert C. U. Yu, John A. Bergfjord, Sr.
Patented Case
View Patent ↗
Granted: Jun 1, 2004
Filed: Oct 9, 2001
Inventors
Robert C. U. Yu
John A. Bergfjord, Sr.
Assignee (at issue)
Xerox 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.