Granted Patent
Utility
US 4,808,569 · App. 07/111,311
Fragrance additive
Inventors:
Ratan K. Chaudhuri, Michael W. Helioff, Robert B. Login
Patented Case
View Patent ↗
Granted: Feb 28, 1989
Filed: Oct 22, 1987
Inventors
Ratan K. Chaudhuri
Michael W. Helioff
Robert B. Login
Assignee (at issue)
GAF 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.