Granted Patent
Utility
US 5,680,031 · App. 08/621,930
Method and apparatus for charging batteries
Inventors:
Vladimir Pavlovic, Jiri K. Nor, Robert B. Field
Patented Case
View Patent ↗
Granted: Oct 21, 1997
Filed: Mar 26, 1996
Inventors
Vladimir Pavlovic
Jiri K. Nor
Robert B. Field
Assignee (at issue)
Norvik Traction 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.