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日期:2024-04-24
Home page of the United States Patent and Trademark Office's main web site....
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日期:2024-04-26
美國專利商標局(US Patent and ... Google Patent Search 美國專利搜尋網站....
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日期:2024-04-27
The US Patent and Trademark Office (
PTO) offers World-Wide Web (Web) ......
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日期:2024-04-27
2013年9月30日 - See this important information about searching for patents: ... How to Conduct a Preliminary U.S. Patent Search: A Step by Step Strategy - Web ......
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日期:2024-04-29
2014年2月13日 - Information about the U.S. patenting process, including agency organization chart, rules and regulations, FAQs, and online applications....
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日期:2024-04-24
The United States Patent and Trademark Office (PTO or USPTO) is an agency in the U.S. Department of Commerce that issues patents to inventors and businesses for their inventions, and trademark registration for product ......
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日期:2024-04-28
2013年9月18日 - Search Trademark Database. Although not required prior to ......
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日期:2024-04-26
2014年3月31日 - TESS: search trademarks, Search pending and registered ......