Granted Patent
Utility
US 4,603,149 · App. 06/812,091
Anti-static styrene polymer particles by coating
Inventors:
Haven S. Kesling, Jr., James Jeffrey Harris
Patented Case
View Patent ↗
Granted: Jul 29, 1986
Filed: Dec 23, 1985
Inventors
Haven S. Kesling, Jr.
James Jeffrey Harris
Assignee (at issue)
Atlantic Richfield Company
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.