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A-1 ENGINEERING, INC.
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COON RAPIDS, MN, US
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Patents Grants
last 30 patents
Information
Patent Grant
Injection molding filter
Patent number
5,062,952
Issue date
Nov 5, 1991
A-1 Engineering, Inc.
Clayton L. Neuman
B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
Information
Patent Grant
Apparatus for filtering melted plastic
Patent number
4,299,707
Issue date
Nov 10, 1981
A-1 Engineering, Inc.
Clayton L. Neuman
B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
Information
Patent Grant
Dispersion apparatus for injection molding filter
Patent number
4,054,273
Issue date
Oct 18, 1977
A-1 Engineering, Inc.
Clayton L. Neuman
B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
Information
Patent Grant
Plastic injection mold with self-adjusting coring apparatus
Patent number
4,021,515
Issue date
May 3, 1977
A-1 Engineering, Inc.
Clayton L. Neuman
B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
Patents Applications
last 30 patents
Trademark
last 30 trademarks
Information
Trademark
72418871 - SCREEN PAC
Serial number
72418871
Registration number
963568
Filing date
Mar 20, 1972
A-1 ENGINEERING, INC.
11 - Apparatus for lighting, heating, steam generating, cooking, refrigerating, drying, ventilating, water supply and sanitary purposes