USE AND SALE OF PATENTED ARTICLES-Continued.

under the patent, Held that the defendant thereby became a licensee to use the process in connection with that creamery and its cans and their necessary repairs, but no further. *Vermont Farm Machine Company v. Gibson, 421. UTILITY. See Construction of Specifications and Patents, 22, 31; Designs, 1, 3. VALIDITY OF PATENTS. Sec Demurrer, 2; Injunction, 5; Prior Adjudication. VALID PATENTS. See Construction of Specifications and Patents, 18, 19, 32, 35, 36, 37, 38, 39, 40, 41, 42, 43, 44, 45, 46, 47, 48, 49, 50, 51, 52, 53; Patents to Dead Men; Particular Patents, 5, 10, 11, 18, 19, 22, 25, 32, 41, 42, 46, 51, 55, 57, 62, 63, 72, 73, 77, 80, 82.

VOID PATENTS. See Construction of Specifications and Patents, 20, 34; Particular Patents, 1, 2, 3, 4, 6, 7, 8, 9, 12, 13, 14, 15, 21, 30, 31, 34, 38, 40, 44, 45, 48, 54, 60, 64, 65, 67, 68, 69, 70, 74,75, 76, 78; Reissues, 1, 2.

WAIVER OF OBJECTIONS. See Suits for Infringement, 4.

WITHDRAWAL OF CASE FROM ISSUE. See Amendments, 1.

1. APPLICATION for Patent-WITHDRAWAL FROM ISSUE-An application will not
be withdrawn from issue for the insertion of a claim in the absence of any
showing of great hardship or irremediable injury. Ex parte Blakeslee, 72.
2. SAME-SAME-CLAIM VOLUNTARILY CANCELED-The withdrawal of an applica-
tion from issue for the purpose of inserting a claim previously presented and
voluntarily canceled will not be permitted. Id.

WITNESSES. See Interference, 12; Subpanas; Suits for Infringement, 1. .
WITNESSES TO APPLICATIONS.

APPLICATIONS FOR PATENTS-ATTESTATION OF INVENTOR'S SIGNATURE TO SPECIFICATION—The attestation by two witnesses of the inventor's signature to the specification forming part of his application for patent is made imperative by section 4888, Revised Statutes, and Rule 40. Ex parte Ackroyd et al., 58.

WRIT OF ERROR. See Suits for Infringement, 11.