Granted Patent
Utility
US 4,636,763 · App. 06/710,982
Bobbin with strain relief
Inventors:
Elmer J. Nabstedt, Raymond H. Van Wagener
Patented Case
View Patent ↗
Granted: Jan 13, 1987
Filed: Mar 12, 1985
Inventors
Elmer J. Nabstedt
Raymond H. Van Wagener
Assignee (at issue)
Universal Manufacturing Co.
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.