Granted Patent
Utility
US 4,558,548 · App. 06/552,416
Non-displaceable shim
Inventor:
Richard A. Hieger
Patented Case
View Patent ↗
Granted: Dec 17, 1985
Filed: Nov 16, 1983
Inventor
Richard A. Hieger
Assignee (at issue)
H. H. Robertson 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.