Granted Patent
Utility
US 6,108,833 · App. 08/874,617
Bi-fold futon frame including force spreading mortise plates
Inventors:
Joel Grossman, Justin A. Kumar
Patented Case
View Patent ↗
Granted: Aug 29, 2000
Filed: Jun 13, 1997
Inventors
Joel Grossman
Justin A. Kumar
Assignee (at issue)
Elite Furniture Co., Ltd.
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.