Granted Patent
Utility
US 5,395,097 · App. 08/043,004
Spring wire core made of nestably stackable half units
Inventors:
Upton R. Dabney, William C. Rodgers
Patented Case
View Patent ↗
Granted: Mar 7, 1995
Filed: Apr 5, 1993
Inventors
Upton R. Dabney
William C. Rodgers
Assignee (at issue)
Hoover Limited
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.