Perkins; David W.
Patent Applications and Registrations
Patent applications and USPTO patent grants for Perkins; David W..The latest application filed is for "collapsible container".
- Perkins; David W. - Cedar Rapids IA US
- Perkins; David W. - Hiawatha IA
| Patent | Date |
|---|---|
| Collapsible container Grant 10,273,070 - Perkins , et al. | 2019-04-30 |
| Collapsible container App 20180334305 - Perkins; David W. ; et al. | 2018-11-22 |
| Collapsible container with improved corners Grant 9,302,806 - Perkins April 5, 2 | 2016-04-05 |
| Collapsible Container With Improved Corners App 20150158625 - Perkins; David W. | 2015-06-11 |
| Interlocking Container App 20150129649 - Perkins; David W. | 2015-05-14 |
| Storage system with improved pole securement system Grant 8,016,113 - Perkins September 13, 2 | 2011-09-13 |
| Collapsible bulk container Grant 8,016,145 - Perkins September 13, 2 | 2011-09-13 |
| Bulk container Grant 7,819,269 - Perkins October 26, 2 | 2010-10-26 |
| Stackable collapsible container App 20100065466 - Perkins; David W. | 2010-03-18 |
| Interlocking container Grant 7,628,310 - Perkins December 8, 2 | 2009-12-08 |
| Collapsible bulk container App 20080135547 - Perkins; David W. | 2008-06-12 |
| Bulk container App 20080137997 - Perkins; David W. | 2008-06-12 |
| Bulk container App 20080135438 - Perkins; David W. | 2008-06-12 |
| Bag nozzle retention system App 20050145521 - Perkins, David W. | 2005-07-07 |
| Interlocking container Grant 6,834,792 - Perkins December 28, 2 | 2004-12-28 |
| Interlocking container App 20040251300 - Perkins, David W. | 2004-12-16 |
| Collapsible bag Grant 6,575,629 - Perkins June 10, 2 | 2003-06-10 |
| Bulk container Grant 6,164,453 - Perkins December 26, 2 | 2000-12-26 |
| Bulk container Grant 6,000,549 - Perkins December 14, 1 | 1999-12-14 |
| Liquid container and valve Grant 5,775,541 - Perkins July 7, 1 | 1998-07-07 |
| Apparatus for securing contained material Grant 5,549,341 - Chase , et al. August 27, 1 | 1996-08-27 |
| Fluent container Grant 5,353,982 - Perkins , et al. October 11, 1 | 1994-10-11 |
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