Krafsur; David S.
Patent Applications and Registrations
Patent applications and USPTO patent grants for Krafsur; David S..The latest application filed is for "process for improving fatigue life in spring-cushioned shoes".
- Krafsur; David S. - Loveland CO
- Krafsur; David S. - Lenoir City TN
Trademarks
| Patent | Date |
|---|---|
| Spring cushioned shoe Grant 7,219,447 - LeVert , et al. May 22, 2 | 2007-05-22 |
| Fluid flow system for spring-cushioned shoe Grant 7,159,338 - LeVert , et al. January 9, 2 | 2007-01-09 |
| Process for improving fatigue life in spring-cushioned shoes App 20050247385 - Krafsur, David S. ; et al. | 2005-11-10 |
| Spring cushioned shoe App 20050126039 - LeVert, Francis E. ; et al. | 2005-06-16 |
| Fluid flow system for spring-cush App 20050126040 - LeVert, Francis E. ; et al. | 2005-06-16 |
| Spring cushioned shoe Grant 6,886,274 - Krafsur , et al. May 3, 2 | 2005-05-03 |
| Fluid flow system for spring-cushioned shoe Grant 6,865,824 - Levert , et al. March 15, 2 | 2005-03-15 |
| Fluid flow system for spring-cushioned shoe Grant 6,665,957 - Levert , et al. December 23, 2 | 2003-12-23 |
| Fluid flow system for spring-cushioned shoe App 20030192201 - Levert, Francise E. ; et al. | 2003-10-16 |
| Spring cushioned shoe App 20030163933 - Krafsur, David S. ; et al. | 2003-09-04 |
| Fluid flow system for spring-cushioned shoe App 20020088142 - Levert, Francis E. ; et al. | 2002-07-11 |
| Spring cushioned shoe App 20010049888 - Krafsur, David S. ; et al. | 2001-12-13 |
| Spring cushioned shoe Grant 6,282,814 - Krafsur , et al. September 4, 2 | 2001-09-04 |
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