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Michael E. Lewis
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Ann Arbor, MI, US
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last 30 patents
Information
Patent Grant
Watthour meter mounting apparatus with safety shield
Patent number
5,577,933
Issue date
Nov 26, 1996
Ekstrom Industries, Inc.
Darrell Robinson
G01 - MEASURING TESTING
Information
Patent Grant
Watthour meter mounting apparatus with improved electrical connections
Patent number
5,571,031
Issue date
Nov 5, 1996
Ekstrom Industries, Inc.
Darrell Robinson
G01 - MEASURING TESTING
Information
Patent Grant
Watthour meter socket adapter with tamper resistant ring
Patent number
5,423,695
Issue date
Jun 13, 1995
Ekstrom Industries, Inc.
Darrell Robinson
G01 - MEASURING TESTING
Information
Patent Grant
Watthour meter socket adapter with additional plug-in terminal capa...
Patent number
5,385,486
Issue date
Jan 31, 1995
Ekstrom Industries, Inc.
Darrell Robinson
G01 - MEASURING TESTING
Information
Patent Grant
Service disconnect and meter storage adapter
Patent number
5,033,973
Issue date
Jul 23, 1991
Ekstrom Industries, Inc.
Allen V. Pruehs
H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information
Patent Grant
Watthour meter socket adapter with interface connection
Patent number
4,977,482
Issue date
Dec 11, 1990
Ekstrom Industries, Inc.
Albert K. Langdon
G01 - MEASURING TESTING
Information
Patent Grant
Electric meter socket sealing ring
Patent number
4,934,747
Issue date
Jun 19, 1990
Ekstron Industries, Inc.
Albert K. Langdon
G09 - EDUCATION CRYPTOGRAPHY DISPLAY ADVERTISING SEALS