Patent
   D854691
Priority
May 22 2018
Filed
May 22 2018
Issued
Jul 23 2019
Expiry
Jul 23 2034
Assg.orig
Entity
unknown
14
17
n/a
The ornamental design for a medical oxygen concentrator, as shown and described.

FIG. 1 is a front perspective view of a medical oxygen concentrator showing our new design;

FIG. 2 is a rear perspective view thereof;

FIG. 3 is a front elevation view thereof;

FIG. 4 is a rear elevation view thereof;

FIG. 5 is a left side elevation view thereof;

FIG. 6 is a right side elevation view thereof;

FIG. 7 is a top plan view thereof; and,

FIG. 8 is a bottom plan view thereof.

The broken lines depict portions of the article that form no part of the claimed design.

Kamada, Masahiro, Kondo, Yoshinori, Saiki, Takehiko, Hida, Yasunori

Patent Priority Assignee Title
D875945, Aug 19 2016 SATA GMBH & CO KG Apparatus for cooling and/or warming air
D918396, Aug 16 2018 CAREFUSION 303, INCORPORATED Central controller
D930835, Apr 01 2019 INOGEN, INC Oxygen concentrator
D954968, Aug 16 2018 DEKA Products Limited Partnership; Carefusion 303, Inc. Central controller
D970730, Dec 07 2020 SHENZHEN IMDK MEDICAL TECHNOLOGY CO., LTD. Oxygen concentrator
ER1154,
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May 22 2018NGK Spark Plug Co., Ltd.(assignment on the face of the patent)
Jul 11 2018KONDO, YOSHINORINGK SPARK PLUG CO , LTD ASSIGNMENT OF ASSIGNORS INTEREST SEE DOCUMENT FOR DETAILS 0465680591 pdf
Jul 11 2018KAMADA, MASAHIRONGK SPARK PLUG CO , LTD ASSIGNMENT OF ASSIGNORS INTEREST SEE DOCUMENT FOR DETAILS 0465680591 pdf
Jul 11 2018SAIKA, TAKEHIKONGK SPARK PLUG CO , LTD ASSIGNMENT OF ASSIGNORS INTEREST SEE DOCUMENT FOR DETAILS 0465680591 pdf
Jul 11 2018HIDA, YASUNORINGK SPARK PLUG CO , LTD ASSIGNMENT OF ASSIGNORS INTEREST SEE DOCUMENT FOR DETAILS 0465680591 pdf
Jul 11 2018ISHIKAWA, HIROYANGK SPARK PLUG CO , LTD ASSIGNMENT OF ASSIGNORS INTEREST SEE DOCUMENT FOR DETAILS 0465680591 pdf
Jun 30 2023NGK SPARK PLUG CO , LTD NITERRA CO , LTD CHANGE OF NAME SEE DOCUMENT FOR DETAILS 0648420215 pdf
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