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NATIONAL SEAL COMPANY
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AURORA, IL, US
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Patents Grants
last 30 patents
Information
Patent Grant
Method for encapsulating waste material and systems therefor
Patent number
6,155,446
Issue date
Dec 5, 2000
National Seal Corporation
Loren D. Alexander
B65 - CONVEYING PACKING STORING HANDLING THIN OR FILAMENTARY MATERIAL
Information
Patent Grant
Seamless landfill sump
Patent number
5,820,298
Issue date
Oct 13, 1998
National Seal Company
Thaddeus S. Dzierzbicki
B09 - DISPOSAL OF SOLID WASTE RECLAMATION OF CONTAMINED SOIL SOIL
Information
Patent Grant
Seam tester
Patent number
4,404,857
Issue date
Sep 20, 1983
National Seal Company
Leslie C. Hardison
G01 - MEASURING TESTING
Patents Applications
last 30 patents
Trademark
last 30 trademarks
Information
Trademark
75708534 - STORMPRO
Serial number
75708534
Filing date
May 18, 1999
NATIONAL SEAL CORPORATION
19 - Building materials (non-metallic)
Information
Trademark
75708535 - WEATHERPRO
Serial number
75708535
Filing date
May 18, 1999
NATIONAL SEAL CORPORATION
19 - Building materials (non-metallic)
Information
Trademark
74678648 - NATIONAL SEAL-LOCK
Serial number
74678648
Filing date
May 20, 1995
National Seal Company
19 - Building materials (non-metallic)
Information
Trademark
74648181 - COVER SEAL
Serial number
74648181
Filing date
Mar 17, 1995
National Seal Company
17 - Rubber, gutta-percha, gum, asbestos, mica and goods made from these materials and not included in other classes
Information
Trademark
74398872 - NATIONAL SEAL-LOCK
Serial number
74398872
Filing date
Jun 7, 1993
National Seal Company
20 - Furniture, mirrors, picture frames
Information
Trademark
74346848 - SMART WELDER
Serial number
74346848
Filing date
Jan 8, 1993
National Seal Company
7 - Machines and machine tools
Information
Trademark
74346849 - SMART MOUSE
Serial number
74346849
Filing date
Jan 8, 1993
National Seal Company
7 - Machines and machine tools
Information
Trademark
74345321 - THERMO SEAL
Serial number
74345321
Filing date
Jan 4, 1993
National Seal Company
17 - Rubber, gutta-percha, gum, asbestos, mica and goods made from these materials and not included in other classes
Information
Trademark
74314606 - NSC
Serial number
74314606
Registration number
1784451
Filing date
Sep 17, 1992
National Seal Company
37 - Building construction
Information
Trademark
74314639 - NSC
Serial number
74314639
Registration number
1782938
Filing date
Sep 17, 1992
National Seal Company
37 - Building construction
Information
Trademark
74161263 - FRICTION SEAL
Serial number
74161263
Registration number
1741292
Filing date
Apr 26, 1991
National Seal Company
17 - Rubber, gutta-percha, gum, asbestos, mica and goods made from these materials and not included in other classes
Information
Trademark
74150834 - SEAL LOCK
Serial number
74150834
Filing date
Mar 25, 1991
National Seal Company
6 - Common metals and their alloys
Information
Trademark
74146201 - DURA SEAL
Serial number
74146201
Registration number
1791000
Filing date
Mar 11, 1991
National Seal Company
17 - Rubber, gutta-percha, gum, asbestos, mica and goods made from these materials and not included in other classes
Information
Trademark
74146274 - POLY FENCE
Serial number
74146274
Filing date
Mar 11, 1991
National Seal Company
6 - Common metals and their alloys
Information
Trademark
74142946 - COEX SEAL
Serial number
74142946
Registration number
1758341
Filing date
Feb 28, 1991
National Seal Company
17 - Rubber, gutta-percha, gum, asbestos, mica and goods made from these materials and not included in other classes
Information
Trademark
74128621 - SANI-COVER
Serial number
74128621
Registration number
1762848
Filing date
Jan 7, 1991
National Seal Company
17 - Rubber, gutta-percha, gum, asbestos, mica and goods made from these materials and not included in other classes
Information
Trademark
74126388 - NSC
Serial number
74126388
Registration number
1720726
Filing date
Dec 20, 1990
National Seal Company
37 - Building construction
Information
Trademark
73551699 - POLY-NET
Serial number
73551699
Registration number
1411328
Filing date
Aug 5, 1985
NATIONAL SEAL COMPANY
19 - Building materials (non-metallic)