Granted Patent
Utility
US 6,231,816 · App. 09/524,292
Low temperature sensitivity oxygen generating compositions
Inventors:
Yunchang Zhang, James C. Cannon
Patented Case
View Patent ↗
Granted: May 15, 2001
Filed: Mar 14, 2000
Inventors
Yunchang Zhang
James C. Cannon
Assignee (at issue)
BE Intellectual Property, Inc.
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.