Granted Patent
Utility
US 4,518,047 · App. 06/410,653
Tool bar with slidably insertable ballast block
Inventors:
Richard L. Peterson, Roger J. Scheurer
Patented Case
View Patent ↗
Granted: May 21, 1985
Filed: Aug 23, 1982
Inventors
Richard L. Peterson
Roger J. Scheurer
Assignee (at issue)
Hiniker 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.