Granted Patent
Utility
US 4,584,154 · App. 06/707,348
Crosshead with longitudinal and transverse shear mixers
Inventor:
Daryl D. Cerny
Patented Case
View Patent ↗
Granted: Apr 22, 1986
Filed: Mar 1, 1985
Inventor
Daryl D. Cerny
Assignee (at issue)
BALL CORPORATION
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.