Granted Patent
Utility
US 4,516,752 · App. 06/570,110
Mechanically preloaded packing assembly
Inventors:
Brett A. Babbitt, Tri C. Le
Patented Case
View Patent ↗
Granted: May 14, 1985
Filed: Jan 12, 1984
Inventors
Brett A. Babbitt
Tri C. Le
Assignee (at issue)
Joy Manufacturing 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.