Granted Patent
Utility
US 6,562,913 · App. 09/515,790
Process for producing high vinylidene polyisobutylene
Inventors:
C. Edward Baxter, Jr., Gilbert Valdez, Christopher Lobue, Timothy Lowry
Patented Case
View Patent ↗
Granted: May 13, 2003
Filed: Feb 29, 2000
Inventors
C. Edward Baxter, Jr.
Gilbert Valdez
Christopher Lobue
Timothy Lowry
Assignee (at issue)
Texas Petrochemicals 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.