Granted Patent
Utility
US 4,418,874 · App. 06/302,872
Method and apparatus for storing a length of web
Inventor:
Bayani E. Roldan
Patented Case
View Patent ↗
Granted: Dec 6, 1983
Filed: Sep 16, 1981
Inventor
Bayani E. Roldan
Assignee (at issue)
Bell and Howell, LLC
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.