Patent
   D803040
Priority
Apr 25 2016
Filed
Jul 18 2016
Issued
Nov 21 2017
Expiry
Nov 21 2032
Assg.orig
Entity
unknown
13
58
n/a
The ornamental design for a helical drive, as shown and described.

FIG. 1 is a top perspective view of a helical drive according to the design;

FIG. 2 is a top plan view thereof;

FIG. 3 is a bottom plan view thereof;

FIG. 4 is a left side elevational view thereof;

FIG. 5 is a middle side elevational view thereof;

FIG. 6 is a right side elevational view thereof; and,

FIG. 7 is a bottom perspective view thereof.

Schuit, Nathan, Mayfield, Jason

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Jul 13 2016MAYFIELD, JASONUNIRAC INC ASSIGNMENT OF ASSIGNORS INTEREST SEE DOCUMENT FOR DETAILS 0391820140 pdf
Jul 18 2016Unirac Inc.(assignment on the face of the patent)
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