Patent Maintenance Fee Events (1981 - Present)
收藏OPEN DATA NETWORK2020-06-25 更新2024-10-26 收录
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https://www.opendatanetwork.com/dataset/uspto.data.commerce.gov/95ij-9exb
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资源简介：
Contains recorded maintenance fee events for patents granted from September 1, 1981 to present. Each new weekly file is cumulative.
提供机构：
uspto.data.commerce.gov
