Schmidgall; Jon A.
Patent Applications and Registrations
Patent applications and USPTO patent grants for Schmidgall; Jon A..The latest application filed is for "apparatus and method for protecting lined concrete pipe during the manufacturing process".
- Schmidgall; Jon A. - Mediapolis IA
- Schmidgall; Jon A. - Des Moines County
| Patent | Date |
|---|---|
| Vibration system for concrete pipe making machines Grant 8,926,311 - Schmidgall January 6, 2 | 2015-01-06 |
| Apparatus and method for protecting lined concrete pipe during the manufacturing process Grant 7,832,703 - Schmidgall , et al. November 16, 2 | 2010-11-16 |
| Apparatus And Method For Protecting Lined Concrete Pipe During The Manufacturing Process App 20100178373 - SCHMIDGALL; JON A. ; et al. | 2010-07-15 |
| Vibration system for concrete pipe making machines Grant 7,083,406 - Stoller , et al. August 1, 2 | 2006-08-01 |
| Vibration System For Concrete Pipe Making Machines App 20050058740 - Stoller, David ; et al. | 2005-03-17 |
| Apparatus and method for removing joint rings from cured concrete products Grant 6,817,589 - Schmidgall , et al. November 16, 2 | 2004-11-16 |
| Apparatus and method for removing joint rings from cured concrete products App 20030155671 - Schmidgall, Jon A. ; et al. | 2003-08-21 |
| Spacer for double cage reinforcement wire mesh for concrete products Grant 4,999,965 - Schmidgall , et al. March 19, 1 | 1991-03-19 |
| Concrete pipe making machine Grant 4,708,621 - Schmidgall , et al. November 24, 1 | 1987-11-24 |
| Method for lining pipe Grant 4,578,235 - Schmidgall , et al. March 25, 1 | 1986-03-25 |
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