Granted Patent
Utility
US 4,794,024 · App. 07/088,041
Stabilizer and rigidified pop-up structures resembling solid polyhedrons
Inventors:
Christopher S. Crowell, Ib Penick
Patented Case
View Patent ↗
Granted: Dec 27, 1988
Filed: Aug 21, 1987
Inventors
Christopher S. Crowell
Ib Penick
Assignee (at issue)
STRUCTURAL GRAPHICS, LLC
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.