Granted Patent
Utility
US 4,406,568 · App. 06/279,640
Precision tool
Inventors:
William C. Rogers, William E. Davis, Jr.
Patented Case
View Patent ↗
Granted: Sep 27, 1983
Filed: Jul 2, 1981
Inventors
William C. Rogers
William E. Davis, Jr.
Assignee (at issue)
General Dynamics 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.