Granted Patent
Utility
US 4,488,322 · App. 06/238,526
Mattress and bed construction
Inventors:
William V. Hunt, John A. Coletta, Richard J. Howling, Leonard C. Higgs
Patented Case
View Patent ↗
Granted: Dec 18, 1984
Filed: Feb 26, 1981
Inventors
William V. Hunt
John A. Coletta
Richard J. Howling
Leonard C. Higgs
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.