Granted Patent
Utility
US 5,434,324 · App. 08/137,683
Preparation of alkylcyclopentadienes
Inventors:
John Y. Lee, Meng-Sheng Ao
Patented Case
View Patent ↗
Granted: Jul 18, 1995
Filed: Oct 15, 1993
Inventors
John Y. Lee
Meng-Sheng Ao
Assignee (at issue)
ALBEMARLE CORPORATION
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.