Granted Patent
Utility
US 5,258,481 · App. 07/862,786
Multifunctional water-dispersible crosslinking agents
Inventors:
Laurentius Cornelis Josephus Hesselmans, Johanna Antonia Maria Van Den Goorbergh
Patented Case
View Patent ↗
Granted: Nov 2, 1993
Filed: Apr 3, 1992
Inventors
Laurentius Cornelis Josephus Hesselmans
Johanna Antonia Maria Van Den Goorbergh
Assignee (at issue)
Stahl Holland B. V.
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.