Legal Opinion
Concrete Mixing & Conveying Co. v. Ulen Contracting Corp.
District Court, S.D. New York
Decided August 4, 1925PublishedCited by 3 opinions
1Opinion of the Court
AUGUSTUS N. HAND, District Judge.
This is a suit for infringement of United States letters patent No. 1,127,660 to John H. McMichael, granted February 9, 1915, claims 2, 4, 6, 17, 21, 22, 28, 34, and 35.
The invention has for its object to provide a method of and an apparatus for elevating and transporting concrete. The patentee describes concrete in the specification as “a composition containing relatively large pieces of rock Qr stone as -uniform in size as possible, together with predetermined proportions of sand, cement, and water.” Pneumatic pressure is used to compress the concrete into a…
2Cases cited3 opinions
- Expanded Metal Co. v. BradfordSupreme Court of the United States · 1909
- Hobbs v. BeachSupreme Court of the United States · 1901
- Buffalo Forge Co. v. City of BuffaloCourt of Appeals for the Second Circuit · 1918
3Cited by3 opinions
- Concrete Mixing & Conveying Co. v. Powers-Kennedy Contracting Corp.Court of Appeals for the Second Circuit · 1928
- Concrete Mixing & Conveying Co. v. R. C. Storrie & Co.District Court, W.D. Washington · 1927
- Concrete Mixing & Conveying Co. v. R. C. Storrie & Co.Court of Appeals for the Ninth Circuit · 1928