Adjustable ladder extension
Latest Patents:
- METHOD FOR PROVIDING A PERFUSION BASED COMPLICATION PREDICTION AND CLINICAL DECISION SUPPORT SYSTEM
- METHOD OF MONITORING INTAKE OF BREAST MILK BY AN INFANT
- INTRAORAL CAMERA
- VITAL SIGN MONITORING SYSTEM FOR DETECTING MULTIPLE VITAL SIGNS OF MULTIPLE PERSONS IN A SCENE AND METHOD THEREOF
- DEEP VEIN THROMBOSIS DETECTION DEVICE
Any broken lines shown are for illustrative purposes only and form no part of the claimed designed.
Claims
The ornamental design for an adjustable ladder extension, as shown and described.
| 5107958 | April 28, 1992 | Johnson |
| 5307900 | May 3, 1994 | Noga |
| D364930 | December 5, 1995 | Burge |
| D380277 | June 24, 1997 | Bonn |
| 5758745 | June 2, 1998 | Beggs |
| 5913382 | June 22, 1999 | Martin |
| D420752 | February 15, 2000 | Hiscock |
| D485369 | January 13, 2004 | Ranagan |
| D584422 | January 6, 2009 | Dangrow |
| 20080190697 | August 14, 2008 | Skurkis |
| 20110214946 | September 8, 2011 | Yeh |
| 20150233180 | August 20, 2015 | Lanzafame |
Type: Grant
Filed: Sep 7, 2016
Date of Patent: Jan 16, 2018
Assignee: (Poulsbo, WA)
Inventor: Philip F. Lanzafame (Poulsbo, WA)
Primary Examiner: Cynthia Ramirez
Assistant Examiner: Michael Maharajh
Application Number: 29/576,870