Check valve
Latest PGI International, Ltd. Patents:
Description
The broken lines showing for unclaimed portions of the check valve in
Claims
The ornamental design for a check valve, as shown and described.
Referenced Cited
U.S. Patent Documents
2339101 | January 1944 | Parker |
D269633 | July 5, 1983 | Willinger et al. |
D321928 | November 26, 1991 | Milo |
D354335 | January 10, 1995 | Siposs |
D364210 | November 14, 1995 | Loerop et al. |
D370963 | June 18, 1996 | Daansen |
D419217 | January 18, 2000 | Lee |
D426617 | June 13, 2000 | Hansen |
D496091 | September 14, 2004 | Katzman et al. |
D536443 | February 6, 2007 | Latsos |
D576704 | September 9, 2008 | Gilcher |
Patent History
Patent number: D606167
Type: Grant
Filed: Dec 3, 2008
Date of Patent: Dec 15, 2009
Assignee: PGI International, Ltd. (Houston, TX)
Inventor: Spencer M. Nimberger (Houston, TX)
Primary Examiner: Cathron C. Brooks
Assistant Examiner: Maurice Stevens
Attorney: Browning Bushman P.C.
Application Number: 29/328,863
Type: Grant
Filed: Dec 3, 2008
Date of Patent: Dec 15, 2009
Assignee: PGI International, Ltd. (Houston, TX)
Inventor: Spencer M. Nimberger (Houston, TX)
Primary Examiner: Cathron C. Brooks
Assistant Examiner: Maurice Stevens
Attorney: Browning Bushman P.C.
Application Number: 29/328,863
Classifications
Current U.S. Class:
Valve Or Body Therefor (D23/233)