Three dimensional filter frame
Latest 3M INNOVATIVE PROPERTIES COMPANY Patents:
Description
In the drawings, the broken lines depict unclaimed portions of the three dimensional filter frame. The dot and dashed lines represent a boundary between the claimed and the non-claimed portions and form no part of the claimed design.
Claims
The ornamental design for a three dimensional filter frame, as shown and described.
Referenced Cited
U.S. Patent Documents
Other references
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Patent History
Patent number: D896943
Type: Grant
Filed: Dec 18, 2017
Date of Patent: Sep 22, 2020
Assignee: 3M INNOVATIVE PROPERTIES COMPANY (Saint Paul, MN)
Inventors: Scott A. Clear (Escondido, CA), Michael S. Schuffert (Chatsworth, CA)
Primary Examiner: Lakiya G Rogers
Assistant Examiner: John A Voytek
Application Number: 29/629,926
Type: Grant
Filed: Dec 18, 2017
Date of Patent: Sep 22, 2020
Assignee: 3M INNOVATIVE PROPERTIES COMPANY (Saint Paul, MN)
Inventors: Scott A. Clear (Escondido, CA), Michael S. Schuffert (Chatsworth, CA)
Primary Examiner: Lakiya G Rogers
Assistant Examiner: John A Voytek
Application Number: 29/629,926
Classifications
Current U.S. Class:
Filter (D23/365)