Granted Patent
Utility
US 4,873,919 · App. 07/346,271
Disposable bags
Inventor:
Alexander P. Janssen
Patented Case
View Patent ↗
Granted: Oct 17, 1989
Filed: Apr 28, 1989
Inventor
Alexander P. Janssen
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.