Granted Patent
Utility
US 4,243,104 · App. 05/919,454
Soil working machine
Inventors:
Sandor Sipos, Sandor I. Varga, Imre Hali
Patented Case
View Patent ↗
Granted: Jan 6, 1981
Filed: Jun 27, 1978
Inventors
Sandor Sipos
Sandor I. Varga
Imre Hali
Assignee (at issue)
Kaposvari Mezogazdasagi Gepgyarto es Szolgaltato Vallalat in Kaposvar
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.