Granted Patent
Utility
US 5,970,911 · App. 08/999,632
Construction including an accommodation for animals
Inventor:
Cornelis van der Lely
Patented Case
View Patent ↗
Granted: Oct 26, 1999
Filed: Jan 22, 1998
Inventor
Cornelis van der Lely
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.