Granted Patent
Utility
US 4,325,518 · App. 06/204,604
Reel spool pneumatic core clamp
Inventors:
Gerald W. Karr, Robert E. Page
Patented Case
View Patent ↗
Granted: Apr 20, 1982
Filed: Nov 6, 1980
Inventors
Gerald W. Karr
Robert E. Page
Assignee (at issue)
Beloit 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.