GOODYEAR TIRE & RUBBER CO., INC. ET AL. v. RAY-O-VAC COMPANY.
No. 262
Supreme Court of the United States
Argued February 2, 3, 1944. Decided February 28, 1944.
321 U.S. 275
Messrs. William E. Chilton and Albert R. Golrick for petitioners.
Messrs. Bernard A. Schroeder and Gerhard A. Gesell, with whom Messrs. Russell Wiles and Charles J. Merriam were on the brief, for respondent.
This case involves the validity and alleged infringement of the Anthony Patent No. 2,198,423, issued April 23, 1940. The District Court held the patent valid and infringed1 and its judgment was affirmed by the Circuit Court of Appeals.2
The patent, a very narrow one in a crowded art, is for a leak-proof dry cell for a flashlight battery. The conventional dry cell embodies a cup-like zinc electrode acting as a container for a central carbon electrode, electrolyte, and depolarizing mix. The bottom enclosure is the terminal for one electrode, the top enclosure for the other. The electrolyte is a viscous liquid composed of ammonium chloride, zinc chloride, water and starch. Use of the battery causes erosion of the zinc and eventually the mixture leaks through the container. A short circuit, or long continuous use, causes the formation of solids as the zinc is eaten away. The resultant expansion of the cell contents, due to the weakness of the zinc walls, causes bulging, breaking, and seepage. The escaping liquid tends to injure the metal walls of the flashlight casing.
Dry cells have been used in flashlights for many years. The tendency of the cells to damage flashlight containers by leakage, bulging, and freezing in the container had long plagued the industry. So much so that most manufacturers attached warning notices to their flashlight batteries advising users not to allow them to remain in the flashlight for extended periods of non-use and to remove a cell promptly upon ascertaining that it was dead.
No patent in the prior art addressed itself to the problem of preventing both leakage and swelling in a dry cell. At the time of the Anthony application flashlight cells were commonly encased in a paper coating which might
The claims in suit are Nos. 1, 2, and 3. If 1 is good, 2 and 3 are also. We, therefore, quote 1:
“A leak-immunized flashlight dry-cell provided with circuit terminals at opposite ends, comprising: a hollow cylindrical zinc metal electrode containing electrolyte; a centrally disposed carbon electrode and depolarizing-mix in said electrolyte; a bottom closure for the cell affording a terminal for one of the electrodes; a top closure for the
cell provided with a terminal for the other electrode, electrically insulated from the first mentioned terminal; and a protecting sheet-metal sheath insulated from both of said electrodes and enclosing the side walls of said metal electrode and tightly embracing said closures so as to prevent leakage of the electrolyte from the unit.”
The District Judge made findings, which have support in the evidence, to the following effect: That the problem presented was old and no solution was attained prior to Anthony‘s invention; that the respondent began marketing the patented cell in 1939 and was the first to guarantee its product against sticking in the flashlight case; that the cell met with immediate commercial success due to the advantages of its construction and not to extensive advertising; that its advantages were recognized by the Army and other governmental agencies and were demonstrated by reliable tests. In his opinion he examined the prior art and showed that none of the workers in the art had met the problems of leakage and swelling in the way suggested by Anthony and that most of the cited patents had not in fact been addressed to these problems.
With respect to the charge of infringement, the court found, on sufficient evidence: That the petitioners consciously copied the respondent‘s commercial cell, which was made in accordance with the claims of the patent; that the petitioners’ cell infringed the claims in suit, since the petitioners’ substitutions of structure and material were no more than the choice of mechanical alternatives and did not avoid the practice of the principle disclosed by the patent.
The Circuit Court of Appeals reexamined the findings in the light of the evidence and accepted them. It must be a strong case in which this court will set aside these concurrent findings of two courts.3 We think this is not such a case.
The petitioners renew here contentions, based on asserted insufficiency of description of the invention and on alleged file-wrapper estoppel, which the courts below overruled. We have considered these defenses but conclude that the proofs do not sustain them.
Decree affirmed.
MR. JUSTICE BLACK, dissenting:
Those who strive to produce and distribute goods in a system of free competitive enterprise should not be handicapped by patents based on a “shadow of a shade of an idea.” Atlantic Works v. Brady, 107 U.S. 192, 200. The practice of granting patents for microscopic structural or
MR. JUSTICE DOUGLAS and MR. JUSTICE MURPHY concur in this opinion.
MR. JUSTICE JACKSON is of opinion the judgment below should be reversed for the reason that, invention being doubtful, the Court of Appeals relied upon commercial success of the product without adequate findings or evidence as to whether such alleged success was due to the product or to the phenomenal increase in demand due to the war and to the advantages of marketing contracts with mail-order houses.
