Granted Patent
Utility
US 5,397,443 · App. 08/143,297
Method of assembling tubular electrochemical oxygen generators
Inventor:
Gregory A. Michaels
Patented Case
View Patent ↗
Granted: Mar 14, 1995
Filed: Oct 26, 1993
Inventor
Gregory A. Michaels
Assignee (at issue)
INVACARE 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.