Granted Patent
Utility
US 5,169,589 · App. 07/722,189
Process and apparatus for deformation of solid thermoplastic polymers and related products
Inventors:
Jacques Remi Francoeur, Larry Roy Morris
Patented Case
View Patent ↗
Granted: Dec 8, 1992
Filed: Jun 27, 1991
Inventors
Jacques Remi Francoeur
Larry Roy Morris
Assignee (at issue)
Symplastics Limited
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.