Granted Patent
Utility
US 4,509,197 · App. 06/427,190
Window bag for liquids
Inventor:
Florren E. Long
Patented Case
View Patent ↗
Granted: Apr 2, 1985
Filed: Sep 29, 1982
Inventor
Florren E. Long
Assignee (at issue)
Ludlow Company LP
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.