Invention Grant
- Patent Title: Filter and mask
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Application No.: US15733568Application Date: 2019-03-04
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Publication No.: US11998773B2Publication Date: 2024-06-04
- Inventor: HyoungSun Park , Jung Han Kim , Kyungsik Dan
- Applicant: 3M INNOVATIVE PROPERTIES COMPANY
- Applicant Address: US MN St. Paul
- Assignee: 3M Innovative Properties Company
- Current Assignee: 3M Innovative Properties Company
- Current Assignee Address: US MN St. Paul
- Priority: KR 20180027305 2018.03.08
- International Application: PCT/IB2019/051727 2019.03.04
- International Announcement: WO2019/171249A 2019.09.12
- Date entered country: 2020-08-28
- Main IPC: A62B23/02
- IPC: A62B23/02 ; A62B18/08
Abstract:
A filter according to an embodiment include a filter main body provided with a sheet member, and a border portion of the filter main body includes a first region bent at least one time, and a second region formed in a flat shape and provided to be bendable and to provide softness to the filter main body.
Information query
