Granted Patent
Utility
US 5,641,138 · App. 08/426,824
Trash bag stand
Inventors:
Leon Cronk, Quentin Alverson
Patented Case
View Patent ↗
Granted: Jun 24, 1997
Filed: Apr 21, 1995
Inventors
Leon Cronk
Quentin Alverson
Assignee (at issue)
The ServiceMaster Company
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.