Granted Patent
Utility
US 4,512,456 · App. 06/428,145
Force balanced actuator for mechanically actuated container grippers
Inventor:
John J. Peyton
Patented Case
View Patent ↗
Granted: Apr 23, 1985
Filed: Sep 29, 1982
Inventor
John J. Peyton
Assignee (at issue)
Industrial Automation 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.