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Bertelsen Inc.
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Neponset, IL, US
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Patents Grants
last 30 patents
Information
Patent Grant
Arc wing aircraft
Patent number
4,415,131
Issue date
Nov 15, 1983
Bertelsen Inc.
William R. Bertelsen
B64 - AIRCRAFT AVIATION COSMONAUTICS
Patents Applications
last 30 patents
Trademark
last 30 trademarks
Information
Trademark
73319164 - XOX
Serial number
73319164
Registration number
1191182
Filing date
Jul 16, 1981
BERTELSEN COMPANY, INC., THE
17 - Rubber, gutta-percha, gum, asbestos, mica and goods made from these materials and not included in other classes
Information
Trademark
72391684 - X-O THERM-O-CEL
Serial number
72391684
Registration number
953366
Filing date
May 11, 1971
BERTELSEN COMPANY, THE
17 - Rubber, gutta-percha, gum, asbestos, mica and goods made from these materials and not included in other classes
Information
Trademark
72391529 - NOSKUL
Serial number
72391529
Registration number
954246
Filing date
May 10, 1971
BERTELSEN COMPANY, INC., THE
17 - Rubber, gutta-percha, gum, asbestos, mica and goods made from these materials and not included in other classes
Information
Trademark
72391530 - TOPS FOR INGOTS
Serial number
72391530
Registration number
1028180
Filing date
May 10, 1971
BERTELSEN COMPANY, INC., THE
17 - Rubber, gutta-percha, gum, asbestos, mica and goods made from these materials and not included in other classes
Information
Trademark
72391528 - THERM-O-CEL
Serial number
72391528
Registration number
997394
Filing date
May 10, 1971
BERTELSEN COMPANY, INC., THE
17 - Rubber, gutta-percha, gum, asbestos, mica and goods made from these materials and not included in other classes