Drainage connecting pipe
Latest BEIJING RUNDE HONGTU TECHNOLOGY DEVELOPMENT CO. LTD. Patents:
Description
Claims
The ornamental design for a drainage connecting pipe, as shown.
Referenced Cited
U.S. Patent Documents
1203989 | November 1916 | Dehn |
1362718 | December 1920 | McNamara |
3495281 | February 1970 | Palowsky |
D232552 | August 1974 | Watson |
4179762 | December 25, 1979 | Barnhardt |
D469859 | February 4, 2003 | Didone |
D682399 | May 14, 2013 | Funderburg |
20150225933 | August 13, 2015 | Makaton |
Patent History
Patent number: D816810
Type: Grant
Filed: Aug 16, 2016
Date of Patent: May 1, 2018
Assignee: BEIJING RUNDE HONGTU TECHNOLOGY DEVELOPMENT CO. LTD. (Beijing)
Inventor: Runfan Li (Beijing)
Primary Examiner: Eric L Goodman
Assistant Examiner: Amy C Wierenga
Application Number: 29/574,500
Type: Grant
Filed: Aug 16, 2016
Date of Patent: May 1, 2018
Assignee: BEIJING RUNDE HONGTU TECHNOLOGY DEVELOPMENT CO. LTD. (Beijing)
Inventor: Runfan Li (Beijing)
Primary Examiner: Eric L Goodman
Assistant Examiner: Amy C Wierenga
Application Number: 29/574,500
Classifications