Donald H. Zipper

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Western Springs, IL, US

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Patents Grantslast 30 patents

Information Patent Grant
Plastic closure and related container finish
- Patent number 4,373,641
- Issue date Feb 15, 1983
- The Continental Group, Inc.
- John N. Banich
- B65 - CONVEYING PACKING STORING HANDLING THIN OR FILAMENTARY MATERIAL
Information Patent Grant
Expansion section for tamper-indicating ring of squeeze-off closure
- Patent number 4,227,618
- Issue date Oct 14, 1980
- The Continental Group, Inc.
- Donald H. Zipper
- B65 - CONVEYING PACKING STORING HANDLING THIN OR FILAMENTARY MATERIAL