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
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)