Trademark: DOI
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Mark Identification
Proof of use for DOI
We do not have any records of a proof of use for DOI at this moment.
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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