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Trademark: DOI

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Proof of use for DOI

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Possible trademark infringements of DOI

Basic Information about DOI

Serial Number
88595430
Filing Date
27 Aug 2019
Registration Number
6150968
Registration Date
15 Sep 2020
Mark Drawing Code
4

Classifications

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First use of DOI anywhere
No first use declared yet.
First use in commerce
There is no first use of this trademark in commerce detected yet.
Status Code
6
International Code
005
US Codes
006; 018; 044; 046; 051; 052

Who owns DOI?

1. Aptorum Group Limited Hong Kong

2. Aptorum Group Limited Hong Kong

3. Aptorum Group Limited Hong Kong

Correspondent

Sam Yip
Idea Intellectual Limited
12F-1, No. 49 Bo Ai Road
Zhongzheng District

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