DOUGLAS J KLONOWSKI Professional Engineer License verification

Business Entity

ACTIVE

License Type

Professional Engineer

Description

LICENSED PROFESSIONAL ENGINEER

License Number

062050464

License Status

ACTIVE

Business

First Name

DOUGLAS J

Last Name

KLONOWSKI

Business Name

DOUGLAS J KLONOWSKI

Original Issue Date

02/09/1996

Effective Date

10/20/2025

Expiration Date

11/30/2027

City

DOWNERS GROVE

State

Zip

60515

County

DUPAGE

Ever Disciplined

LastModifiedDate

10/20/2025