Granted Patent
Utility
US 4,526,720 · App. 06/568,558
Process to prepare stabilized monolithium acetylide
Inventors:
Verlan H. Van Rheenen, Dae Y. Cha
Patented Case
View Patent ↗
Granted: Jul 2, 1985
Filed: Jan 5, 1984
Inventors
Verlan H. Van Rheenen
Dae Y. Cha
Assignee (at issue)
The Upjohn Co.
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.