Granted Patent
Utility
US 5,647,052 · App. 08/431,103
Volatile substance dispenser and method of dispensing a volatile substance with dissipation indication
Inventors:
Manhar K. Patel, John M. Paulovich
Patented Case
View Patent ↗
Granted: Jul 8, 1997
Filed: Apr 28, 1995
Inventors
Manhar K. Patel
John M. Paulovich
Assignee (at issue)
Reckitt & Colman Limited
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.