Granted Patent
Utility
US 4,552,397 · App. 06/551,781
Apparatus for gripping an article
Inventor:
Peter G. Conrad
Patented Case
View Patent ↗
Granted: Nov 12, 1985
Filed: Nov 14, 1983
Inventor
Peter G. Conrad
Assignee (at issue)
Celanese GmbH
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.