Granted Patent
Utility
US 4,952,559 · App. 07/317,394
Fragrance additive
Inventors:
Robert B. Login, Michael W. Helioff
Patented Case
View Patent ↗
Granted: Aug 28, 1990
Filed: Mar 1, 1989
Inventors
Robert B. Login
Michael W. Helioff
Assignee (at issue)
GAF Chemicals 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.