Ronald W. Vukmanic

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Naperville, IL, US

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Patents Grantslast 30 patents

Information Patent Grant
Suspended ceiling system with staked-on connectors
- Patent number 5,271,202
- Issue date Dec 21, 1993
- Chicago Metallic Corporation
- Ronald W. Vukmanic
- E04 - BUILDING
Information Patent Grant
Ceiling system with staked on connectors
- Patent number 4,989,387
- Issue date Feb 5, 1991
- Chicago Metallic Corporation
- Ronald W. Vukmanic
- E04 - BUILDING
Information Patent Grant
Reinforced bead
- Patent number 4,852,325
- Issue date Aug 1, 1989
- Chicago Metallic Corporation
- James J. Dunn
- E04 - BUILDING
Information Patent Grant
Centering arrangement for T members of a suspended ceiling
- Patent number 4,712,350
- Issue date Dec 15, 1987
- Chicago Metallic Corporation
- Ronald W. Vukmanic
- E04 - BUILDING
Information Patent Grant
Suspended ceiling system and runner
- Patent number 4,677,802
- Issue date Jul 7, 1987
- Chicago Metallic Corporation
- Ronald W. Vukmanic
- E04 - BUILDING
Information Patent Grant
Suspended ceiling grid system
- Patent number 4,549,383
- Issue date Oct 29, 1985
- Chicago Metallic Corporation
- Ronald W. Vukmanic
- E04 - BUILDING
Information Patent Grant
Suspended ceiling system
- Patent number 4,525,973
- Issue date Jul 2, 1985
- Chicago Metallic Corporation
- Ronald W. Vukmanic
- E04 - BUILDING