Granted Patent
Utility
US 5,718,027 · App. 08/717,704
Apparatus for interior painting of tubing during continuous formation
Inventor:
Bruce E. Laumann
Patented Case
View Patent ↗
Granted: Feb 17, 1998
Filed: Sep 23, 1996
Inventor
Bruce E. Laumann
Assignee (at issue)
ALLIED TUBE & CONDUIT CORPORATION
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.