Patent
   D327867
Priority
Feb 20 1990
Filed
Feb 20 1990
Issued
Jul 14 1992
Expiry
Jul 14 2006
Assg.orig
Entity
unknown
4
7
n/a
The ornamental design for a trailer hitch alignment unit, as shown.

FIG. 1 is a front elevational view of a trailer hitch alignment unit showing my new design;

FIG. 2 is a rear elevational view thereof;

FIG. 3 is a left side elevational view thereof;

FIG. 4 is a right side elevational view thereof;

FIG. 5 is a top plan view thereof; and,

FIG. 6 is a bottom plan view thereof.

Elliott, Lance E.

Patent Priority Assignee Title
10252588, Jul 10 2006 PROGRESS MFG LLC Trailer hitch system
6612603, Sep 07 2001 Trailer hitch alignment system
8490999, Jul 10 2006 PROGRESS MFG LLC Trailer hitch system
D510894, Feb 25 2005 Trailer hitch alignment system
Patent Priority Assignee Title
4313264, Jun 07 1977 Alignment and coupling of vehicles
4346665, Mar 10 1980 Apparatus and method for determining vehicular distance per fuel unit
4500206, Oct 15 1982 United States of America as represented by the Secretary of the Air Force Optical system for measuring shadowgraph data
4560183, Dec 09 1983 Trailer hitch guide
4586454, Jul 26 1984 Distance stick
4621432, Jun 27 1985 Trailer hook-up guide system
D306144, Oct 16 1986 Load hauling vehicle hitch pin transducer for electronic load weighing
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