Granted Patent
Utility
US 5,800,770 · App. 08/735,580
Method of making a flexible tube
Inventors:
Roger P. Smith, Thomas J. Krall, Jeffrey S. Lugar, Michael Norton
Patented Case
View Patent ↗
Granted: Sep 1, 1998
Filed: Oct 23, 1996
Inventors
Roger P. Smith
Thomas J. Krall
Jeffrey S. Lugar
Michael Norton
Assignee (at issue)
Owens-Brockway Plastic Products 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.