Granted Patent
Utility
US 4,758,521 · App. 06/702,318
Assay of ketones in ambient air
Inventors:
Robley E. Lushbaugh, Richard A. Conway, Joe E. Neff
Patented Case
View Patent ↗
Granted: Jul 19, 1988
Filed: Feb 15, 1985
Inventors
Robley E. Lushbaugh
Richard A. Conway
Joe E. Neff
Assignee (at issue)
Union Carbide 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.