Search Images Maps Play YouTube News Gmail Drive More »
Sign in
Screen reader users: click this link for accessible mode. Accessible mode has the same essential features but works better with your reader.


  1. Advanced Patent Search
Publication numberUSD222643 S
Publication typeGrant
Publication dateNov 23, 1971
Filing dateApr 3, 1970
Publication numberUS D222643 S, US D222643S, US-S-D222643, USD222643 S, USD222643S
InventorsRonald C. Martin
Export CitationBiBTeX, EndNote, RefMan
External Links: USPTO, USPTO Assignment, Espacenet
Corrugated tubing
US D222643 S
Abstract  available in
Previous page
Next page
Claims  available in
Description  (OCR text may contain errors)

Patented Nov. 23, 1971 CORRUGATED TUBING Ronald C Martin, Waterville, Ohio, and Marty E. Sixt,

Iowa City, Iowa, assignors to Advanced Drainage Systems, Inc., Waterville, Ohio Filed Apr. 3, 1970, Ser. No. 22,231

Term of patent 14 years Int. Cl. D23-,01 US. Cl. D23-45 FIG. 1 is a side elevational view of a corrugated tubing References Cited showing our new design;

FIG. 2 is a cross-sectional view taken along line 2 2 UNITED STATES PATENTS of FIG. 1; and D. 213,828 4/1969 Blake D23-45 FIG. 3 is a perspective cross-sectional view taken along 995,200 6/ 1911 Storms 285-Dig. 2

line 3--3 of FIG. 1. 2,695,038 11/1954 Parce et a1 138-121 We claim: 2,891,581 6/1959 Roberts 138-121 The ornamental design for corrugated tubing, as shown. 3,043,612 7/1962 Pavlik et a1. 285226 JAMES R. LARGEN, Primary Examiner