Guard for a walk behind power trowel
Description
Claims
The ornamental design for a guard for a walk behind power trowel, as shown and described.
Referenced Cited
U.S. Patent Documents
| 3791754 | February 1974 | Zochil |
| 3973857 | August 10, 1976 | Whiteman, Jr. |
| 4027991 | June 7, 1977 | Maass |
| 4046483 | September 6, 1977 | Sutherland |
| 4232980 | November 11, 1980 | Tertinek |
| D400544 | November 3, 1998 | Allen |
| D404041 | January 12, 1999 | Allen |
| D413127 | August 24, 1999 | Allen |
| D416564 | November 16, 1999 | Allen |
| 6019545 | February 1, 2000 | Allen |
| D466909 | December 10, 2002 | Allen |
| D472248 | March 25, 2003 | Riess |
| D474203 | May 6, 2003 | Allen |
| 6582153 | June 24, 2003 | Allen |
| D602961 | October 27, 2009 | Chapple |
| D618256 | June 22, 2010 | Chapple |
Patent History
Patent number: D806138
Type: Grant
Filed: Mar 16, 2015
Date of Patent: Dec 26, 2017
Inventors: Xiwen Shi (Richmond Hill), Tianying Guan (Shanghai)
Primary Examiner: Mark Goodwin
Application Number: 29/520,580
Type: Grant
Filed: Mar 16, 2015
Date of Patent: Dec 26, 2017
Inventors: Xiwen Shi (Richmond Hill), Tianying Guan (Shanghai)
Primary Examiner: Mark Goodwin
Application Number: 29/520,580
Classifications
Current U.S. Class:
Element Or Attachment (4) (D15/28)