发明名称 Permanent coffee filter
摘要 The present invention relates to a reusable or permanent filter assembly useful in positioning and retaining the ground roast of coffee or tea in a hot water beverage maker. The plastic filter assembly consists of a separable outer container and an inner/perforated filtering element. The filtering element contains a plurality of equidistant holes or perforations that permits the rapid drip of a preferred beverage from the filter assembly.
申请公布号 US4832845(A) 申请公布日期 1989.05.23
申请号 US19870133437 申请日期 1987.12.15
申请人 HENDRETTI, THOMAS 发明人 HENDRETTI, THOMAS
分类号 A47J31/02 主分类号 A47J31/02
代理机构 代理人
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