Granted Patent
Utility
US 4,558,086 · App. 06/657,447
Method for suppressing zinc stearate aging bloom
Inventors:
Floyd Ramp, Lothar F. Stiberth
Patented Case
View Patent ↗
Granted: Dec 10, 1985
Filed: Oct 4, 1984
Inventors
Floyd Ramp
Lothar F. Stiberth
Assignee (at issue)
B. F. Goodrich Company
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.