Portable roof lifting apparatus

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Description

FIG. 1 is a perspective view of the portable roof lifting apparatus showing my design;

FIG. 2 is a top plan view thereof;

FIG. 3 is a front elevation thereof;

FIG. 4 is a left side elevational view thereof;

FIG. 5 is a right side elevational view thereof;

FIG. 6 is a back elevational view thereof; and,

FIG. 7 is a bottom plan view thereof.

The cord is broken away on the end indicating indefinite length.

Referenced Cited
U.S. Patent Documents
D207723 May 1967 Kane
224376 February 1880 Armstrong
D278172 March 26, 1985 Ellis
1085208 January 1914 Jones
3131907 May 1964 Brown
3280939 October 1966 Smith
3791627 February 1974 Stone et al.
4004778 January 25, 1977 Steinhagen
4660679 April 28, 1987 Ostrobrod
5184860 February 9, 1993 Bouillon et al.
5265742 November 30, 1993 Stenger et al.
5341898 August 30, 1994 Baziuk
5431248 July 11, 1995 Willaughby
Patent History
Patent number: D408608
Type: Grant
Filed: Feb 10, 1998
Date of Patent: Apr 20, 1999
Inventor: Charles N. Brown (Lake Charles, LA)
Primary Examiner: Doris Clark
Law Firm: Royston, Rayzor, Vickery, Novak & Druce, L.L.P.
Application Number: 0/83,569
Classifications
Current U.S. Class: Crane Or Hoist (5) (D34/33); Stair, Ladder, Scaffold, Or Similar Support (D25/62)
International Classification: 1205;