Granted Patent
Utility
US 6,719,551 · App. 10/104,394
Thermoplastic molding process and apparatus
Inventor:
Dale E. Polk, Jr.
Patented Case
View Patent ↗
Granted: Apr 13, 2004
Filed: Mar 25, 2002
Inventor
Dale E. Polk, Jr.
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.