Daylight Glass Mfg. Co. v. American Prismatic Light Co.

Citations

• 140 F. 174
• 1905 U.S. App. LEXIS 4781

Syllabus

<p>1. Patents — Infringement—Machine foe Making Prismatic Glass.</p> <p>The Cummings patent No. 695,282, for a machine for making prismatic glass, discloses invention, and is valid. Also held infringed.</p> <p>2. Same — Validity—Prismatic Glass Windows.</p> <p>The Cummings patents Nos. 695,283, 695,284, and 710,434, covering methods of making panes or windows from prismatic glass, and for such windows themselves,’ are void as embodying only the function of a machine invented and patented by the patentee, or for lack of invention in view of the prior art.</p>