Granted Patent
Utility
US 4,727,784 · App. 06/865,103
Web cut blank piling method and apparatus
Inventors:
Albert J. Sarka, Jerry L. Bell
Patented Case
View Patent ↗
Granted: Mar 1, 1988
Filed: May 20, 1986
Inventors
Albert J. Sarka
Jerry L. Bell
Assignee (at issue)
Bernal Rotary Systems, Inc.
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.