Granted Patent
Utility
US 4,871,409 · App. 07/116,780
Apparatus for laying a continuous strip of elastomeric material onto a surface
Inventor:
David J. B. Perkins
Patented Case
View Patent ↗
Granted: Oct 3, 1989
Filed: Nov 5, 1987
Inventor
David J. B. Perkins
Assignee (at issue)
Apsley Metals Limited
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.