Base member of a portable lift system

FIG. 1 is a perspective view of a base member of a portable lift system showing my new design;

FIG. 2 is a left elevational view thereof;

FIG. 3 is a right elevational view thereof;

FIG. 4 is a front elevational view thereof;

FIG. 5 is a back elevational view thereof; and,

FIG. 6 is a top plan view thereof.

The broken line showing in the figures is for the purpose of illustrating environment and forms no part of the claimed design.

The ornamental design for a base member of a portable lift system, as shown and described.

Number	Name	Date	Kind
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2412414	Mueller	Dec 1946	A
3309062	Jansz	Mar 1967	A
D225431	Gulota	Dec 1972	S
4359206	McCreery	Nov 1982	A
D287207	Daenen	Dec 1986	S
4865293	Ishi et al.	Sep 1989	A
4886244	Renault	Dec 1989	A
5048794	Mamessier	Sep 1991	A
5524868	Decker	Jun 1996	A
5681029	Reesor et al.	Oct 1997	A
D468965	Fino	Jan 2003	S
D483222	Willis	Dec 2003	S
D538583	Schuler	Mar 2007	S
D574661	Logan	Aug 2008	S
D689731	Dorion	Sep 2013	S
D711191	Lee	Aug 2014	S
20020079481	Oxtoby	Jun 2002	A1
20080173013	Hernandez	Jul 2008	A1
20130269511	Lemke et al.	Oct 2013	A1

Entry
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PCT/US20151043873 International Search Report and Written Opinion dated Jan. 14, 2016 (19 pages).