Pipe fitter/plumber's calculator

Skip to: Description  ·  Claims  ·  References Cited  · Patent History  ·  Patent History
Description

FIG. 1 is a front view of a pipe fitter/plumber's calculator showing my new design.

FIG. 2 is a back view of the pipe fitter/plumber's calculator.

FIG. 3 is a left side view of the pipe fitter/plumber's calculator.

FIG. 4 is a right side view of the pipe fitter/plumber's calculator.

FIG. 5 is a top view of the pipe fitter/plumber's calculator; and,

FIG. 6 is a bottom view of the pipe fitter/plumber's calculator.

Claims

The ornamental design for a pipe fitter/plumber's calculator, as shown and described.

Referenced Cited
U.S. Patent Documents
D263466 March 23, 1982 Hiraki
4367526 January 4, 1983 McGeary et al.
D298544 November 15, 1988 Gerardy
D307890 May 15, 1990 Kim
D317620 June 18, 1991 Kusmer
5313396 May 17, 1994 Terpstra et al.
D362013 September 5, 1995 Benjamin
D385295 October 21, 1997 Osiecki et al.
D389858 January 27, 1998 Crooks et al.
D408440 April 20, 1999 Matsuda et al.
D410440 June 1, 1999 Carnell
D430195 August 29, 2000 Thompson et al.
D432560 October 24, 2000 Endrulat
Patent History
Patent number: D540372
Type: Grant
Filed: Apr 15, 2004
Date of Patent: Apr 10, 2007
Inventor: Kevin G. Young (Houma, LA)
Primary Examiner: Caron D. Veynar
Application Number: 29/203,430
Classifications
Current U.S. Class: With Keyboard (D18/7)