Fabio
76b8ec33a7
Ingested titles 12–51 and 54 from OLRC USLM XML @119-100 (the whole Code now, uniform edition; Title 53 is reserved/empty). LegalText 11,221 -> 59,740; repo total 105,704 records. Deterministic (byte-identical rerun, verified on Title 42's 8,356 sections); make check green. make legal-us-code default now covers every title. Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>
50 lines
2.4 KiB
Markdown
50 lines
2.4 KiB
Markdown
---
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type: "LegalText"
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title: "35 U.S.C. § 288"
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description: "Action for infringement of a patent containing an invalid claim"
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jurisdiction: "us"
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corpus: "united_states_code"
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kind: "code_section"
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title_number: 35
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title_name: "PATENTS"
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chapter_number: "29"
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chapter_name: "REMEDIES FOR INFRINGEMENT OF PATENT, AND OTHER ACTIONS"
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section: "288"
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citation: "35 U.S.C. § 288"
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status: "current"
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release_point: "119-100"
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release_date: "2026-06-26"
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source: "official"
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source_url: "https://uscode.house.gov/download/releasepoints/us/pl/119/100/xml_usc35@119-100.zip"
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source_identifier: "/us/usc/t35/s288"
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source_file: "data/legal/raw/us/code/title-35/usc35.xml"
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source_hash: "18f712706fa1b3c83905e5fb5bbab87bcccf850e6282f915cdf45f4e42825fd6"
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raw_snapshot_hash: "736cab508592dcf50013a1aed5ab108f72fd8493e76afc46848cdc35da38bbe3"
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text_hash: "b271e7f5167488f08cb63738ca88314c52a0be00445a626c7609894d9821888b"
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retrieved_at: "2026-07-04"
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confidence: "official"
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tags: ["legal", "us-code"]
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---
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# 35 U.S.C. § 288 - Action for infringement of a patent containing an invalid claim
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## Text
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Whenever a claim of a patent is invalid, an action may be maintained for the infringement of a claim of the patent which may be valid. The patentee shall recover no costs unless a disclaimer of the invalid claim has been entered at the Patent and Trademark Office before the commencement of the suit.
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(July 19, 1952, ch. 950, 66 Stat. 813; Pub. L. 93–596, § 1, Jan. 2, 1975, 88 Stat. 1949; Pub. L. 112–29, § 20(h), Sept. 16, 2011, 125 Stat. 334.)
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## Notes
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Historical and Revision NotesBased on Title 35, U.S.C., 1946 ed., § 71 (R.S. 4922). The necessity for a disclaimer to recover on valid claims is eliminated. See section 253. Language is changed.
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Editorial Notes
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Amendments2011—Pub. L. 112–29 struck out “, without deceptive intention,” after “Whenever”. 1975—Pub. L. 93–596 substituted “Patent and Trademark Office” for “Patent Office”.
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Statutory Notes and Related Subsidiaries
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Effective Date of 2011 AmendmentAmendment by Pub. L. 112–29 effective upon the expiration of the 1-year period beginning on Sept. 16, 2011, and applicable to proceedings commenced on or after that effective date, see section 20(l) of Pub. L. 112–29, set out as a note under section 2 of this title.
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Effective Date of 1975 AmendmentAmendment by Pub. L. 93–596 effective Jan. 2, 1975, see section 4 of Pub. L. 93–596, set out as a note under section 1111 of Title 15, Commerce and Trade.
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