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sealvo.com · USPTO Trademark Record
https://sealvo.com/duolog-73405198

Materials, not of metal, for building and construction; rigid pipes, not of metal, for building; asphalt, pitch, tar and bitumen; transportable buildings, not of metal; monuments, not of metal.
DUOLOG (Serial No. 73405198), Registration No. 1278981, is a abandoned US trademark filed on Dec 08, 1982 by New England Log Homes, Inc.. This trademark covers Class 019 (Non-metallic building materials).
First use anywhere: Nov 08, 1982
First use in commerce: Nov 08, 1982
Materials, not of metal, for building and construction; rigid pipes, not of metal, for building; asphalt, pitch, tar and bitumen; transportable buildings, not of metal; monuments, not of metal.
This description is as filed with the USPTO and defines the scope of trademark protection.
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