Granted Patent
Utility
US 4,977,482 · App. 07/393,129
Watthour meter socket adapter with interface connection
Inventors:
Albert K. Langdon, Robert O. Learmont, Darrell Robinson, Robert Goozen, Michael E. Lewis, John Williams, Allen V. Pruehs, John T. Shincovich
Patented Case
View Patent ↗
Granted: Dec 11, 1990
Filed: Aug 14, 1989
Inventors
Albert K. Langdon
Robert O. Learmont
Darrell Robinson
Robert Goozen
Michael E. Lewis
John Williams
Allen V. Pruehs
John T. Shincovich
Assignee (at issue)
Ekstrom Industries, 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.