U.S. patent number D375,683 [Application Number D/039,482] was granted by the patent office on 1996-11-19 for ribbed container. This patent grant is currently assigned to Packaging Corporation of America. Invention is credited to David C. Schoff.
United States Patent | D375,683 |
Schoff | November 19, 1996 |
Inventors: | Schoff; David C. (Ripon, WI) |
---|---|
Assignee: | Packaging Corporation of
America (Evanston, IL) |
Appl. No.: | D/039,482 |
Filed: | May 26, 1995 |
Current U.S. Class: | D9/429 |
Field of Search: | ;D9/428,429,420-425 ;D7/527,531,629 ;220/337,339,671,352,354,668,669,683,602,608,908,662,674,675,646,647,611-613 ;206/508 ;217/124,40,80,33,66,122,3FC |
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Sample of Polar container, Polar Plastics Ltd., St. Laurent, Quebec, Canada. . Sample of Dart Container, Dart Container Corp., Mason, Michigan. . Pyrexware Corning 1972, p. 4, shown by arrow.. |
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