Siebert; Lester D.
Patent Applications and Registrations
Patent applications and USPTO patent grants for Siebert; Lester D..The latest application filed is for "evacuable storage bag with integral zipper seal".
- Siebert; Lester D. - Cobden IL
- Siebert; Lester D. - Carbondale IL
| Patent | Date |
|---|---|
| Evacuable storage bag with integral zipper seal Grant 6,059,457 - Sprehe , et al. May 9, 2 | 2000-05-09 |
| A method for severing and sealing sections of material Grant 4,961,805 - Siebert October 9, 1 | 1990-10-09 |
| Preheater for heat-sealing system for plastic containers Grant 4,856,989 - Siebert August 15, 1 | 1989-08-15 |
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