Cofferdams

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Description

1.-2. Cofferdams

1.0 : Perspective

2.0 : Perspective

Design 1 shows the cofferdam in a landscape view; design 2 shows the cofferdam in top view.

Claims

The ornamental design for a cofferdams, as shown and described.

Referenced Cited
U.S. Patent Documents
D317250 June 4, 1991 Shook
D320027 September 17, 1991 Mintz
D631734 February 1, 2011 Fernandez
8167515 May 1, 2012 Hermes
D758834 June 14, 2016 Tally
9388561 July 12, 2016 Johnson
D767796 September 27, 2016 Kinsman
9506213 November 29, 2016 Tsimmerman
Patent History
Patent number: D782066
Type: Grant
Filed: Jul 20, 2015
Date of Patent: Mar 21, 2017
Inventor: Rudolf Heymann (Geestacht)
Primary Examiner: George D Kirschbaum
Application Number: 35/500,507
Classifications
Current U.S. Class: Structure (D25/1)