Granted Patent
Utility
US 6,336,995 · App. 09/625,971
Cross linked polyamide-ephalohydrin creping additives
Inventor:
Clayton Campbell
Patented Case
View Patent ↗
Granted: Jan 8, 2002
Filed: Jul 26, 2000
Inventor
Clayton Campbell
Assignee (at issue)
Vulcan Materials 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.