Granted Patent
Utility
US 4,132,941 · App. 05/778,133
Syncro-matic circuit used with material spreaders
Inventors:
Eugene A. Sousek, John R. Stroemer, Steven L. Whitsitt
Patented Case
View Patent ↗
Granted: Jan 2, 1979
Filed: Mar 16, 1977
Inventors
Eugene A. Sousek
John R. Stroemer
Steven L. Whitsitt
Assignee (at issue)
Koehring 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.