Adjustable ladder
Description
FIG. 1 is a front elevational of the adjustable ladder 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.
The broken lines are for illustrative purposes only and form no part of the claimed design.
Referenced Cited
U.S. Patent Documents
D238298 | December 1975 | Larson |
3948353 | April 6, 1976 | Lane |
Patent History
Patent number: D423685
Type: Grant
Filed: Jul 15, 1999
Date of Patent: Apr 25, 2000
Inventor: Jose Ruiz (Carolina, PR)
Primary Examiner: Doris Clark
Application Number: 0/107,808
Type: Grant
Filed: Jul 15, 1999
Date of Patent: Apr 25, 2000
Inventor: Jose Ruiz (Carolina, PR)
Primary Examiner: Doris Clark
Application Number: 0/107,808
Classifications