Corrugated drain pipe

Description

FIG. 1 is a fragmentary perspective view of a corrugated drain pipe showing my new design;

FIG. 2 is a top plan view thereof;

FIG. 3 is a front elevational view thereof;

FIG. 4 is a right side elevational view thereof;

FIG. 5 is a rear elevational view thereof;

FIG. 6 is a left side elevational view thereof; and

FIG. 7 is a bottom plan view thereof.

Referenced Cited
U.S. Patent Documents
D264116 April 27, 1982 Soderstrom
661109 November 1900 Schmitz
780189 January 1905 Jaeckel
1052226 February 1913 Douglas
1350229 August 1920 Lee
1608889 November 1926 Lampe
2196708 April 1940 Reid
4016727 April 12, 1977 Osaka et al.
4134268 January 16, 1979 Elmore
4389138 June 21, 1983 Soderstrom
4523613 June 18, 1985 Fousse et al.
Patent History
Patent number: D299162
Type: Grant
Filed: Feb 20, 1985
Date of Patent: Dec 27, 1988
Assignee: Vasby Innovationsprodukter AB (Stockholm)
Inventor: Bo Fredblad (Stockholm)
Primary Examiner: James R. Largen
Law Firm: Burns, Doane, Swecker & Mathis
Application Number: 6/703,559
Classifications
Current U.S. Class: Pipe, Tubing Or Hose (D23/266)