Granted Patent
Utility
US 5,178,795 · App. 07/554,359
Homogeneous, essentially nonaqueous adjuvant compositions with buffering capability
Inventor:
Johnnie R. Roberts
Patented Case
View Patent ↗
Granted: Jan 12, 1993
Filed: Jul 19, 1990
Inventor
Johnnie R. Roberts
Assignee (at issue)
HELENA CHEMICAL CORP.
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.