Granted Patent
Utility
US 4,196,532 · App. 05/914,141
Ballast regulator side plow
Inventor:
Jacques Muller
Patented Case
View Patent ↗
Granted: Apr 8, 1980
Filed: Jun 9, 1978
Inventor
Jacques Muller
Assignee (at issue)
Materiel Industriel S.A.
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.