Patent
   D975712
Priority
Dec 31 2020
Filed
Dec 31 2020
Issued
Jan 17 2023
Expiry
Jan 17 2038
Assg.orig
Entity
unknown
6
10
n/a
The ornamental design for a membrane keyboard, as shown and described.

FIG. 1 is a first perspective view of a membrane keyboard showing my new design;

FIG. 2 is a second perspective view thereof;

FIG. 3 is a front view thereof;

FIG. 4 is a back 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 shown in the drawings depict portions of the membrane keyboard in which the design is embodied that form no part of the claimed design.

Zhao, Xiangjian

Patent Priority Assignee Title
ER3924,
ER432,
ER4863,
ER5166,
ER6911,
ER8213,
Patent Priority Assignee Title
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D912050, Mar 11 2018 SHENZHEN RIITEK ELECTRONIC CO ,LTD Keyboard
D932491, Dec 18 2020 SHENZHEN QIANHAI PATUOXUN NETWORK AND TECHNOLOGY CO., LTD Keyboard
D940137, Aug 23 2019 ZHUHAI HOKSI TECHNOLOGY CO., LTD Keyboard
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