Patent
   D861054
Priority
Nov 20 2015
Filed
Dec 04 2017
Issued
Sep 24 2019
Expiry
Sep 24 2034
Assg.orig
Entity
unknown
15
37
n/a
The ornamental design for a fingered backup ring, as shown and described.

FIG. 1 shows an isometric view of a top side of a fingered backup ring;

FIG. 2 shows a side view of the fingered backup ring of FIG. 1;

FIG. 3 shows a downward looking view of the fingered backup ring of FIG. 1;

FIG. 4 shows an upward looking view of the fingered backup ring of FIG. 1; and,

FIG. 5 shows an isometric view of a bottom side of the fingered backup ring of FIG. 1.

Davies, Evan Lloyd, Avila, Luis Miguel

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Executed onAssignorAssigneeConveyanceFrameReelDoc
Sep 16 2013National Boss Hog Energy Services, LLCDownhole Technology, LLCCHANGE OF NAME SEE DOCUMENT FOR DETAILS 0459960734 pdf
Feb 08 2016DAVIES, EVAN LLOYDNational Boss Hog Energy Services, LLCASSIGNMENT OF ASSIGNORS INTEREST SEE DOCUMENT FOR DETAILS 0459960653 pdf
Feb 08 2016VANLUE, DUKENational Boss Hog Energy Services, LLCASSIGNMENT OF ASSIGNORS INTEREST SEE DOCUMENT FOR DETAILS 0459960653 pdf
Feb 08 2016AVILA, LUIS MIGUELNational Boss Hog Energy Services, LLCASSIGNMENT OF ASSIGNORS INTEREST SEE DOCUMENT FOR DETAILS 0459960653 pdf
Jun 01 2017DAVIES, EVAN LLOYDDownhole Technology, LLCASSIGNMENT OF ASSIGNORS INTEREST SEE DOCUMENT FOR DETAILS 0459960715 pdf
Jun 01 2017AVILA, LUIS MIGUELDownhole Technology, LLCASSIGNMENT OF ASSIGNORS INTEREST SEE DOCUMENT FOR DETAILS 0459960715 pdf
Dec 04 2017Downhole Technology, LLC(assignment on the face of the patent)
Sep 30 2019Downhole Technology, LLCThe WellBoss Company, LLCCHANGE OF NAME SEE DOCUMENT FOR DETAILS 0506910420 pdf
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