35 U.S. Code Chapter 28 - INFRINGEMENT OF PATENTS

Sec. 271. Infringement of patent. 272. Temporary presence in the United States. 273. Defense to infringement based on prior commercial use.
Amendments

2011—Pub. L. 112–29, § 5(b),Sept. 16, 2011, 125 Stat. 299, amended item 273 generally, substituting “Defense to infringement based on prior commercial use” for “Defense to infringement based on earlier inventor”.
1999—Pub. L. 106–113, div. B, § 1000(a)(9) [title IV, § 4302(b)], Nov. 29, 1999, 113 Stat. 1536, 1501A–557, added item 273.

 

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