Peerless Roll Leaf Co. v. Lange’s Empirical Analysis
20 F.2d 801 · 1927
Citation profile
1 federal appellate · 2 district · 1 state decisions
How this case has been cited
Cited by 5 later decisions — most recently January 1974
1 federal appellate · 2 district · 1 state decisions
Later decisions citing this case, by decade. The current decade is in progress, and our corpus holds fewer opinions from the most recent years, so the latest bars are undercounted — not a real decline.
Most-quoted passages
The sentences later courts lift from this opinion, ranked by how many decisions quote each — the parts of the opinion doing the work. These counts are smaller than the citation total above because most of the 5 citing decisions cite the case generally; a passage count includes only decisions quoting that exact language verbatim.
““The plaintiff maintains that the Grupe patent is a primary or basic patent and lies at the foundation of the modern commercial roll leaf industry, claiming that it has five important results which are that chalk or its equivalent, being present in the sizing in the form of myriads of microscopic marbles, (1) operates as a mirror upon light passing through the thin metallic leaf to increase its lustre; (2) affords an opaque screen to block out the color of the 'article embossed; (3) fills the coarse grain of the fabric embossed; (4) has a heat-retarding effect to produce dean-cut edges of the embossed design; and (5) becomes a shield against tarnishing and discoloring the metallic leaf by chemicals from the article embossed. That the alleged invention was not the foundation of the commercial roll leaf industry is evidenced, we think, by the fact that transfer leaf in rolls was in use, patented and in litigation before the conception of either of the inventions of the patents in suit; and while chalk and rice starch may produce the five results claimed, it is equally true that the same results were obtained in like or different degree by other ingredients in the prior art. * * * “Evidently the Grupe patent or the Boyd patent cannot be infringed unless-it is valid and, if valid, it is only because it involves invention and then only if the invention be patentable in that it points out a filler to be admixed with the sizing that is new and useful in the sense of being a real adv”
1 later decision quote this exact passage · from the majority
How this case has been treated — in progress
Whether each later court followed, distinguished, criticized, or overruled this decision. The treatment classification (task #35) runs highest-cited cases first and lights up here as it reaches this one.