Granted Patent
Utility
US 4,254,918 · App. 06/123,228
Removable core for reeled web material
Inventor:
Peter Huggins
Patented Case
View Patent ↗
Granted: Mar 10, 1981
Filed: Feb 21, 1980
Inventor
Peter Huggins
Assignee (at issue)
Ciba-Geigy
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.