Granted Patent
Utility
US 4,508,477 · App. 06/430,449
Fastening device
Inventors:
Donald N. Oehlke, Ralph A. MacRae, James Crammond, Hans R. Rattmann
Patented Case
View Patent ↗
Granted: Apr 2, 1985
Filed: Sep 30, 1982
Inventors
Donald N. Oehlke
Ralph A. MacRae
James Crammond
Hans R. Rattmann
Assignee (at issue)
Eaton 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.