Granted Patent
Utility
US 4,250,733 · App. 06/057,316
Fastening system including segmented self releasing anvil
Inventors:
John H. Ruhl, Richard D. Dixon
Patented Case
View Patent ↗
Granted: Feb 17, 1981
Filed: Jul 13, 1979
Inventors
John H. Ruhl
Richard D. Dixon
Assignee (at issue)
Huck 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.