U.S. Supreme Court
Hurlbut v. Schillinger, 130 U.S. 456 (1889)
Hurlbut v. Schillinger
Argued March 19, 1889
Decided April 22, 1889
130 U.S. 456
APPEAL FROM THE CIRCUIT COURT OF THE UNITED
STATES FOR THE NORTHERN DISTRICT OF ILLINOIS
Reissued letters patent No. 4364, granted to John J. Schillinger, May 2, 1571, for an " improvement in concrete pavements," on the surrender of original letters patent No. 105,599, granted to said Schillinger, July 19, 1870, were valid.
The proper construction of the claims of the reissue stated, in view of a disclaimer filed March 1, 1875.