Granted Patent
Utility
US 4,056,065 · App. 05/733,971
Rejection feature for center plate
Inventors:
David Elmer Fiegl, Vaughn Terrey Hawthorne, Albert E. Martin
Patented Case
View Patent ↗
Granted: Nov 1, 1977
Filed: Oct 19, 1976
Inventors
David Elmer Fiegl
Vaughn Terrey Hawthorne
Albert E. Martin
Assignee (at issue)
Dresser 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.