Charles L. Dunsworth

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Midwest City, OK, US

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Patents Grantslast 30 patents

Information Patent Grant
Hygroscopic composition for fire resistant expansion joint cover
- Patent number 4,649,129
- Issue date Mar 10, 1987
- Metalines, Inc.
- Charles L. Dunsworth
- E04 - BUILDING
Information Patent Grant
Smoke and heat barrier
- Patent number 4,566,242
- Issue date Jan 28, 1986
- Metalines, Inc.
- Charles L. Dunsworth
- E04 - BUILDING
Information Patent Grant
Wide extension expansion joint assembly
- Patent number 4,557,082
- Issue date Dec 10, 1985
- Metalines, Inc.
- Charles L. Dunsworth
- E04 - BUILDING
Information Patent Grant
Phosphorescent tread plate and composition
- Patent number 4,522,861
- Issue date Jun 11, 1985
- Metalines, Inc.
- Charles L. Dunsworth
- E04 - BUILDING
Information Patent Grant
Fire resistant expansion joint cover
- Patent number 4,517,779
- Issue date May 21, 1985
- Metalines, Inc.
- Charles L. Dunsworth
- E04 - BUILDING