Legal Opinion
Delaney Patents Corp. v. Johns-Manville
District Court, S.D. California
Decided September 28, 1939No. 1328—YPublishedCited by 1 opinion
1Opinion of the Court
YANKWICH, District Judge.
Plaintiff, as the owner of Letters Patent No. 1660745 by Delaney, issued on September 28, 1928, claims that the product known as “Sanacoustic” tile, manufactured by the defendant Johns-Manville Sales Corporation, infringes claim 1 of the patent which reads: “(1) An acoustic block comprising a shell having a perforated facing and a filling of sound-absorbing substance.”
The patent in suit is in the field of acoustic building materials in which progress has been rather slow and in which the prior art is very extensive.
The combination of a perforated facing enclosing a…
2Cases cited21 opinions
- General Electric Co. v. Wabash Appliance Corp.Supreme Court of the United States · 1938
- Galliher v. CadwellSupreme Court of the United States · 1892
- Deering v. Winona Harvester WorksSupreme Court of the United States · 1894
- Patterson v. HewittSupreme Court of the United States · 1904
- Holland Furniture Co. v. Perkins Glue Co.Supreme Court of the United States · 1928
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3Cited by1 opinion
- Mantz v. KerstingDistrict Court, S.D. California · 1939