Granted Patent
Utility
US 4,693,288 · App. 06/918,158
Universal joint maker
Inventors:
Juergen W. Buechele, Guenter Fisher
Patented Case
View Patent ↗
Granted: Sep 15, 1987
Filed: Oct 14, 1986
Inventors
Juergen W. Buechele
Guenter Fisher
Assignee (at issue)
G & F Precision, 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.