Granted Patent
Utility
US 4,334,730 · App. 06/097,459
Insulated from ground bulkhead adapter
Inventors:
William L. Colwell, Carl W. Schmelzle
Patented Case
View Patent ↗
Granted: Jun 15, 1982
Filed: Nov 26, 1979
Inventors
William L. Colwell
Carl W. Schmelzle
Assignee (at issue)
Bunker Ramo Corporation
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.