Granted Patent
Utility
US 4,620,337 · App. 06/685,320
Convoluted support pad for prevention of decubitus ulcers and apparatus for making same
Inventors:
H. Albert Williams, Janet Williams
Patented Case
View Patent ↗
Granted: Nov 4, 1986
Filed: Dec 24, 1984
Inventors
H. Albert Williams
Janet Williams
Assignee (at issue)
Bio Clinic Corporation
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.