Granted Patent
Utility
US 6,087,446 · App. 08/618,756
Masterbatch formulations for polyolefin applications
Inventor:
Daniel William Klosiewicz
Patented Case
View Patent ↗
Granted: Jul 11, 2000
Filed: Mar 20, 1996
Inventor
Daniel William Klosiewicz
Assignee (at issue)
HERCULES 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.