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CLOW CORPORATION
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OAK BROOK, IL, US
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Patents Grants
last 30 patents
Information
Patent Grant
Method of making composite pipe having an integral bell end
Patent number
4,290,836
Issue date
Sep 22, 1981
Clow Corporation
Alex L. McPherson
F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
Information
Patent Grant
Polymer dispersion device
Patent number
4,274,749
Issue date
Jun 23, 1981
Clow Corporation
Robert J. Lake
B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
Information
Patent Grant
Composite pipe
Patent number
4,243,075
Issue date
Jan 6, 1981
Clow Corporation
Alex L. McPherson
B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
Information
Patent Grant
Composite pipe having an integral bell end
Patent number
4,240,470
Issue date
Dec 23, 1980
Clow Corporation
Alex L. McPherson
F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
Information
Patent Grant
Pneumatic sewage ejector
Patent number
4,083,661
Issue date
Apr 11, 1978
Clow Corporation
Alex L. McPherson
F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
Information
Patent Grant
Sealing ring means for pipe couplings
Patent number
4,014,556
Issue date
Mar 29, 1977
Clow Corporation
Richard H. Anderson
F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
Patents Applications
last 30 patents
Trademark
last 30 trademarks
Information
Trademark
73215813 - CLOW
Serial number
73215813
Registration number
1207690
Filing date
May 16, 1979
Clow Corporation
1 - Chemicals used in industry, science and photography, as well as in agriculture, horticulture and forestry
Information
Trademark
73188659 - CLOW
Serial number
73188659
Registration number
1222222
Filing date
Oct 10, 1978
Clow Corporation
1 - Chemicals used in industry, science and photography, as well as in agriculture, horticulture and forestry
Information
Trademark
73109649 - TRICENTRIC
Serial number
73109649
Registration number
1080775
Filing date
Dec 15, 1976
CLOW CORPORATION
6 - Common metals and their alloys
Information
Trademark
73109648
Serial number
73109648
Registration number
1080774
Filing date
Dec 15, 1976
CLOW CORPORATION
6 - Common metals and their alloys
Information
Trademark
73085424 - DEFLEC-TITE
Serial number
73085424
Registration number
1053635
Filing date
Apr 29, 1976
CLOW CORPORATION
19 - Building materials (non-metallic)
Information
Trademark
73063738 - R/W
Serial number
73063738
Registration number
1063716
Filing date
Sep 22, 1975
CLOW CORPORATION
6 - Common metals and their alloys
Information
Trademark
72413203 - NO-BEL
Serial number
72413203
Registration number
962428
Filing date
Jan 20, 1972
CLOW CORPORATION
19 - Building materials (non-metallic)
Information
Trademark
72394591 - OCTACAM
Serial number
72394591
Registration number
930332
Filing date
Jun 11, 1971
CLOW CORPORATION
6 - Common metals and their alloys
Information
Trademark
72287147 - SUPER BELL-TITE
Serial number
72287147
Registration number
863387
Filing date
Dec 18, 1967
CLOW CORPORATION
6 - Common metals and their alloys