Granted Patent
Utility
US 4,440,550 · App. 06/508,742
On-column injector
Inventors:
Rand G. Jenkins, Norman W. Wohlers
Patented Case
View Patent ↗
Granted: Apr 3, 1984
Filed: Jun 28, 1983
Inventors
Rand G. Jenkins
Norman W. Wohlers
Assignee (at issue)
J & W Scientific, Incorporated
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.