Patent
   D973885
Priority
Mar 26 2019
Filed
Mar 26 2019
Issued
Dec 27 2022
Expiry
Dec 27 2037
Assg.orig
Entity
unknown
8
26
n/a
The ornamental design for an electroencephalogram signal amplification device, substantially as shown and described.

FIG. 1 is a perspective view of an electroencephalogram signal amplification device.

FIG. 2 is a front view thereof.

FIG. 3 is a rear view thereof.

FIG. 4 is a left side view thereof.

FIG. 5 is a right side view thereof.

FIG. 6 is a top view thereof; and,

FIG. 7 is a bottom view thereof.

The broken lines in the drawings are for the purpose of illustrating portions of the article that form no part of the claimed design.

Cory, Haden, Levine, Gabriella, Day, Matthew David

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Executed onAssignorAssigneeConveyanceFrameReelDoc
Mar 04 2019LEVINE, GABRIELLA X Development LLCASSIGNMENT OF ASSIGNORS INTEREST SEE DOCUMENT FOR DETAILS 0487020203 pdf
Mar 04 2019CORY, HADEN X Development LLCASSIGNMENT OF ASSIGNORS INTEREST SEE DOCUMENT FOR DETAILS 0487020203 pdf
Mar 04 2019DAY, MATTHEW DAVIDX Development LLCASSIGNMENT OF ASSIGNORS INTEREST SEE DOCUMENT FOR DETAILS 0487020203 pdf
Mar 26 2019X Development LLC(assignment on the face of the patent)
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