Granted Patent
Utility
US 6,268,077 · App. 09/260,097
Portable fuel cell power supply
Inventors:
Ronald Kelley, Steven D. Pratt, Bobby Dean Landreth, Robert W. Pennisi, Sivakumar Muthuswamy, Glenn F. Urbish
Patented Case
View Patent ↗
Granted: Jul 31, 2001
Filed: Mar 1, 1999
Inventors
Ronald Kelley
Steven D. Pratt
Bobby Dean Landreth
Robert W. Pennisi
Sivakumar Muthuswamy
Glenn F. Urbish
Assignee (at issue)
Motorola, 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.