Granted Patent
Utility
US 4,752,539 · App. 06/913,827
Battery holder for electronic apparatus
Inventor:
William K. Vatter
Patented Case
View Patent ↗
Granted: Jun 21, 1988
Filed: Nov 10, 1986
Inventor
William K. Vatter
Assignee (at issue)
Spectra-Physics, 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.