Granted Patent
Utility
US 6,248,831 · App. 09/455,234
High strength polyethylene film
Inventors:
Vinayak Maheshwari, Robert C. Job, William A. Hoffman, III, William J. Michie, Jr.
Patented Case
View Patent ↗
Granted: Jun 19, 2001
Filed: Dec 6, 1999
Inventors
Vinayak Maheshwari
Robert C. Job
William A. Hoffman, III
William J. Michie, Jr.
Assignee (at issue)
Union Carbide Chemicals & Plastics Technology 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.