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Patent
D854161
Priority
May 15 2018
Filed
May 15 2018
Issued
Jul 16 2019
Expiry
Jul 16 2034
Assg.orig
Entity
unknown
11
14
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 view thereof;
FIG. 4 is a rear view thereof;
FIG. 5 is a left side view thereof;
FIG. 6 is a right side view thereof;
FIG. 7 is a top view thereof; and,
FIG. 8 is a bottom view thereof.
The broken lines are directed to environment and form no part of the claimed design. The unshaded surface that directly adjoins the claimed solid line edge forms no part of the claimed design.
Suda, Masanori , Hirano, Taku , Hatta, Keisuke , Nii, Keiko
Patent
Priority
Assignee
Title
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Mar 26 2018
PHC HOLDINGS CORPORATION
Control panel for medical refrigerator
D982162 ,
Aug 22 2022
Portable oxygen concentrator
ER1154 ,
ER1439 ,
ER2813 ,
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ER9018 ,
ER9701 ,
Patent
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Executed on Assignor Assignee Conveyance Frame Reel Doc
May 15 2018 NGK Spark Plug Co., Ltd. (assignment on the face of the patent) /
Jul 17 2018 SUDA, MASANORI NGK SPARK PLUG CO , LTD ASSIGNMENT OF ASSIGNORS INTEREST SEE DOCUMENT FOR DETAILS 046522 /0607
pdf
Jul 17 2018 HIRANO, TAKU NGK SPARK PLUG CO , LTD ASSIGNMENT OF ASSIGNORS INTEREST SEE DOCUMENT FOR DETAILS 046522 /0607
pdf
Jul 17 2018 HATTA, KEISUKE NGK SPARK PLUG CO , LTD ASSIGNMENT OF ASSIGNORS INTEREST SEE DOCUMENT FOR DETAILS 046522 /0607
pdf
Jul 17 2018 NII, KEIKO NGK SPARK PLUG CO , LTD ASSIGNMENT OF ASSIGNORS INTEREST SEE DOCUMENT FOR DETAILS 046522 /0607
pdf
Jun 30 2023 NGK SPARK PLUG CO , LTD NITERRA CO , LTD CHANGE OF NAME SEE DOCUMENT FOR DETAILS 064842 /0215
pdf
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