Granted Patent
Utility
US 4,337,931 · App. 06/180,593
Spring base for upholstered seating
Inventors:
Donald David Mundell, John P. Gowing
Patented Case
View Patent ↗
Granted: Jul 6, 1982
Filed: Aug 25, 1980
Inventors
Donald David Mundell
John P. Gowing
Assignee (at issue)
Flex-o-lators, 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.