Hugh C. Urmston

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Richmond, IN, US

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Patents Grantslast 30 patents

Information Patent Grant
Threaded thermoplastic closure with vent slot
- Patent number 4,738,370
- Issue date Apr 19, 1988
- Hugh C. Urmston
- B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
Information Patent Grant
Male core for forming vent slots in a thermoplastic closure
- Patent number 4,657,221
- Issue date Apr 14, 1987
- Aluminum Company of America
- Hugh C. Urmston
- B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
Information Patent Grant
Method of forming and a construction for a digitally openable conta...
- Patent number 3,938,455
- Issue date Feb 17, 1976
- Aluminum Company of America
- Hugh C. Urmston
- B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...