Robert J. Duga

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Enfield, CT, US

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Patents Grantslast 30 patents

Information Patent Grant
Delay stretch and blow machine system
- Patent number 4,310,282
- Issue date Jan 12, 1982
- Emhart Industries, Inc.
- Robert Spurr
- B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
Information Patent Grant
Neck ring assembly
- Patent number 4,299,371
- Issue date Nov 10, 1981
- Emhart Industries, Inc.
- Robert J. Duga
- B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
Information Patent Grant
Process for formation of molecularly oriented plastic bottles
- Patent number 4,261,949
- Issue date Apr 14, 1981
- Emhart Industries, Inc.
- Robert Spurr
- B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
Information Patent Grant
Plastic bottle forming machine with modular design
- Patent number 4,140,468
- Issue date Feb 20, 1979
- Emhart Industries, Inc.
- Robert J. Duga
- B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
Information Patent Grant
Machine system for formation of molecularly oriented plastic bottles
- Patent number 4,140,464
- Issue date Feb 20, 1979
- Emhart Industries, Inc.
- Robert Spurr
- B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL