Adjustable roof hatch safety rail
Description
Claims
We claim the ornamental design for an adjustable roof hatch safety rail, as shown and described.
Referenced Cited
U.S. Patent Documents
Other references
D402375 | December 8, 1998 | Cook |
5842685 | December 1, 1998 | Purvis et al. |
6272800 | August 14, 2001 | Phinney et al. |
6279880 | August 28, 2001 | Hawks |
6681528 | January 27, 2004 | Profeta et al. |
6688046 | February 10, 2004 | Perkins |
6931793 | August 23, 2005 | Joyce |
7300037 | November 27, 2007 | Beirne |
7516575 | April 14, 2009 | Cuccurullo |
20040104382 | June 3, 2004 | Collins et al. |
20110017967 | January 27, 2011 | Whiting |
- Best Materials, “Self closing gate for roof hatch safety railing”, http://www.bestmaterials.com/detail.aspx?ID=17131, accessed Mar. 29, 2012.
- Garlock, “Railguard 200 systems adjustable width spring loaded self-closing gate”, http://www.garlockequip.com/railguard-200-systems-adjustable-width-spring-loaded-self-closinggate/, accessed Mar. 29, 2012.
- Bluewater Manufacturing, “Roof hatch fall protection”, http://products.construction.com/Manufacturer/Bluewater-Mfg---Inc--NST150211/products/Roof-Hatch-Railings-and-Grab-Bar-Attachment-NST34786-P, accessed Mar. 29, 2012.
- TC Safety Supply, “Roof Hatch Kits—Safety Guard Rails Systems”, http://www.tcsafetysupply.com/hatch.php, accessed Mar. 29, 2012.
- Duct supports http://www.eberliron.com/category/Duct—Suppots/1185.html, Mar. 29, 2012.
Patent History
Patent number: D725792
Type: Grant
Filed: Jun 20, 2013
Date of Patent: Mar 31, 2015
Inventors: Steve Cullen (Sherwood Park), Mark Williams (Edmonton), Phil Roy (St. Albert)
Primary Examiner: Doris Clark
Application Number: 29/458,508
Type: Grant
Filed: Jun 20, 2013
Date of Patent: Mar 31, 2015
Inventors: Steve Cullen (Sherwood Park), Mark Williams (Edmonton), Phil Roy (St. Albert)
Primary Examiner: Doris Clark
Application Number: 29/458,508
Classifications
Current U.S. Class:
Railing Unit Or Fence (D25/38.1)