Granted Patent
Utility
US 5,915,413 · App. 08/936,794
Cover assembly with integral measurement indicia for covering undersink piping
Inventor:
John A. Helmsderfer
Patented Case
View Patent ↗
Granted: Jun 29, 1999
Filed: Sep 24, 1997
Inventor
John A. Helmsderfer
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.