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USPTO allows public access to legal files (including "image file wrappers") for all published applications. Only inventors or their designated attorneys/agents can access their pre-published patent applications in Private PAIR.
USPTO site requires patent or application number search, and they recommend using Public PAIR for best results.. Espacenet and Patentscope often link directly from search results to Global Dossier "file wrapper" prosecution history
TSDR is linked from TESS search results, but this direct link allows search by U.S. Serial Number and both U.S. and International Registration numbers, and includes 600,000+ "dead marks NOT in TESS
Patent bibliographic records ("Front Page" information) in Espacenet are linked to INPADOC legal status, when available. Patent Families (patents that share at least one cited patent) are also linked.
