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Patent
D854691
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Priority
May 22 2018
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Filed
May 22 2018
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Issued
Jul 23 2019
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Expiry
Jul 23 2034
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Assg.orig
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Entity
unknown
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14
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17
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n/a
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The ornamental design for a medical oxygen concentrator, as shown and described.
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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
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Executed on | Assignor | Assignee | Conveyance | Frame | Reel | Doc |
May 22 2018 | | NGK Spark Plug Co., Ltd. | (assignment on the face of the patent) | | / |
Jul 11 2018 | KONDO, YOSHINORI | NGK SPARK PLUG CO , LTD | ASSIGNMENT OF ASSIGNORS INTEREST SEE DOCUMENT FOR DETAILS | 046568 | /0591 |
pdf |
Jul 11 2018 | KAMADA, MASAHIRO | NGK SPARK PLUG CO , LTD | ASSIGNMENT OF ASSIGNORS INTEREST SEE DOCUMENT FOR DETAILS | 046568 | /0591 |
pdf |
Jul 11 2018 | SAIKA, TAKEHIKO | NGK SPARK PLUG CO , LTD | ASSIGNMENT OF ASSIGNORS INTEREST SEE DOCUMENT FOR DETAILS | 046568 | /0591 |
pdf |
Jul 11 2018 | HIDA, YASUNORI | NGK SPARK PLUG CO , LTD | ASSIGNMENT OF ASSIGNORS INTEREST SEE DOCUMENT FOR DETAILS | 046568 | /0591 |
pdf |
Jul 11 2018 | ISHIKAWA, HIROYA | NGK SPARK PLUG CO , LTD | ASSIGNMENT OF ASSIGNORS INTEREST SEE DOCUMENT FOR DETAILS | 046568 | /0591 |
pdf |
Jun 30 2023 | NGK SPARK PLUG CO , LTD | NITERRA CO , LTD | CHANGE OF NAME SEE DOCUMENT FOR DETAILS | 064842 | /0215 |
pdf |
Date |
Maintenance Fee Events |
n/a
Date |
Maintenance Schedule |
n/a