05845847 is referenced by 43 patents and cites 34 patents.

This invention provides an air freshener dispenser device in the form of a semi-rigid thermoplastic strip, which has the central area of both flat surfaces covered with a coextensive laminate of an inner vapor-permeable membrane and an outer peelable vapor-impermeable membrane. The respective membrane laminates enclose the central area of the strip which has at least one aperture accessing between the two laminate films. Preferably there are multiple apertures which serves as a reservoir for a volatile air freshener ingredient. Partial or complete removal of one or both peelablevapor-impermeable membranes allows delivery of the air freshener ingredient as vapor into the environment at a controlled rate over an extended time period.

Title
Air freshener dispenser device
Application Number
8/645975
Publication Number
5845847
Application Date
May 14, 1996
Publication Date
December 8, 1998
Inventor
Joseph M Rosplock
Caledonia
WI, US
John Martin
Caledonia
WI, US
Assignee
S C Johnson & Son
WI, US
IPC
A61L 9/04
View Original Source