Webless corrugated dual wall foundation drain
Latest Prinsco, Inc. Patents:
Claims
The ornamental design for a webless corrugated dual wall foundation drain, as shown and described.
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- Saint-Gobain website; history main page: http://www.saint-gobain-northamerica.com/company/saint-gobain-north-america/history Found Dec. 7, 2016, Copyright 2014-2016.
- Certainteed Saint-Gobain; CertainTeed FORM-A-DRAIN™ Foundations; Code No. 40-95-26A, Copyright 5110 CertainTeed Corporation, Printed in U.S.A.
Type: Grant
Filed: Jan 28, 2016
Date of Patent: May 23, 2017
Assignee: Prinsco, Inc. (Willmar, MN)
Inventor: Carl Raymond Douglass, III (Spicer, MN)
Primary Examiner: Eric Goodman
Assistant Examiner: Amy Wierenga
Application Number: 29/553,095