Granted Patent
Utility
US 6,028,231 · App. 09/284,790
Process for preparing 2-methyl-4-(2,2,3-trimethyl-cyclopent-3-en-1-yl)-but-2-en-1-ol
Inventor:
Thomas Markert
Patented Case
View Patent ↗
Granted: Feb 22, 2000
Filed: Apr 20, 1999
Inventor
Thomas Markert
Assignee (at issue)
Henkel Kommanditgesellschaft auf Aktien
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.