Granted Patent
Utility
US 4,566,496 · App. 06/491,744
Tubular plastics objects
Inventors:
Stanley W. O. Menzel, David E. Mominee, Gilbert W. Vance
Patented Case
View Patent ↗
Granted: Jan 28, 1986
Filed: May 5, 1983
Inventors
Stanley W. O. Menzel
David E. Mominee
Gilbert W. Vance
Assignee (at issue)
J. & M. Manufacturing Co., 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.