Granted Patent
Utility
US 5,137,159 · App. 07/655,819
Push-back rack
Inventors:
Ellsworth H. Collins, James F. Mattingly, Allen B. Kautz
Patented Case
View Patent ↗
Granted: Aug 11, 1992
Filed: Feb 15, 1991
Inventors
Ellsworth H. Collins
James F. Mattingly
Allen B. Kautz
Assignee (at issue)
The Interlake Companies, Inc.
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.