发明名称 |
Extended release fragrance dispensing cartridge |
摘要 |
A cartridge for an air freshener is disclosed, having a pad sealed within a housing by an air-permeable membrane. The density, permeability, and fiber characteristics of the pad and membrane are selected to achieve extended life while maintaining satisfactory air freshening performance.
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申请公布号 |
US5230867(A) |
申请公布日期 |
1993.07.27 |
申请号 |
US19910681236 |
申请日期 |
1991.04.05 |
申请人 |
WATERBURY COMPANIES, INC. |
发明人 |
KUNZE, WALTER A.;SEMANCHIK, ROBERT J. |
分类号 |
A61L9/12 |
主分类号 |
A61L9/12 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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