Granted Patent
Utility
US 5,420,474 · App. 08/092,650
Focusable lamp capsule in a cementless base
Inventors:
Robert J. Schmitt, James P. Szep, William L. Kretovic
Patented Case
View Patent ↗
Granted: May 30, 1995
Filed: Jul 15, 1993
Inventors
Robert J. Schmitt
James P. Szep
William L. Kretovic
Assignee (at issue)
OSRAM SYLVANIA 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.