HOW CORSETS AFFECTED THE LAW: Egbert v. Lippmann | Patent Law

Today, we're talking about how corsets helped to develop the law of public use defense in Egbert v. Lippmann, 104 U.S. 333 (1881). Corset springs were put into a corset for a family friend, twice. 11 years later, the inventor filed his patent on the corset springs. On an infringement action, the defense of public use was raised. The defendant argued the corset springs were given, without restriction, and had been so for more than two years before the patent was filed. The Court agreed, saying that one person knew the corset springs existed would be enough; the corset springs were given without restriction; and the corset springs were of a nature that their function was a naturally non-public one.

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Patent information:
Description
S. H. BARNES.
Corset-Springs.
No. 5,216. Reissued Jan.7,1873.
WITNESSES I. I Z fe J f i fi 44 INVENTOR.
U ITED STATES PATENT Orrron FRANCES LEE EGBERT, OF NEW YORK, N. Y., EXEGUTRIX' OF SAMUEL H.
. BARNES, DECEASED.
lmpeovsmsur m CORSET-SPRINGS.
, Specification forming part of Letters Patent No. 56,345, dated July 17, 1866; reissue No.:2,929,dated May 12,
1868; reissue No. 3,520, dated J mm 29, 1869; reissue No. 3,624, dated August 31, 1869 reissue No. 5,130, dated November 5, 1872 reissue No. 5,216, dated January 7, 1873.
To all whom it may concern:
Be it known that SAMUEL H. BARNES, deceased, of the city, county, and State of New -York, during his lifetime did inventcertain Improvements in Corset Steels or Springs;
and I, Fnnnons LEE Eennnr, of the same city, county, and State aforesaid, execntrix, do hereby declare that the following is a full, clear, and exact description thereof.
This invention consistsin forming the springs of corsets of two or more metallic plates placed one upon another, and so connected as to prevent them from sliding ofi' each other laterally or edgewise, andat the same time admit of their playing or sliding upon each other in the direction of their length or longitudinally, whereby their flexibility and elasticity are greatly increased, While at the same time much.
Figure l is a plan or side View of the two springs of a corset provided with clasps for 1 combining them together in pairs and holding the corset in proper position upon the body of the person wearing it. Fig. 2 is an edge view of the same.
A A represent apair of corset-sprin gs, each member of which pair is in the present case represented as composed of two metallic plates, B B placed one upon the other, and there secured together by rivets, as at O and D. The plates in the member A are here shown as held one upon the other by the rivets that fasten the central clasp upon the springs, as at C, while the plates in the member A are held one upon the other by the headed rivet, as at D, on which the clasp at O is interlocked .by its eye E. At or near each end of the short plate 13 of the two springs A A are short slots a exfrom each other or sliding oil laterally. As the great object is to so. combine the plates as to prevent their slip'pingtoii' each other laterally or edgewise, and atjthe same time admit of their playing or sliding upon each other longitudinally, any othernleans of combining the plates which will secure these results will be within the principle of this invention; r
I therefore claim as the invention of the said SAMUEL H. BARNES, deceased 1. A pair of corset-springs, each spring consisting of two or more metallic plates placed one on another, and so connected as to prevent them from sliding ofi' each other laterally, and to admit of their playing or sliding on each other in the direction of their. length.
2. A pair of corset-springs, each member of the pair being composed of two or more me. tallic. plates placed one on another and fastened together at their centers, and so connected at or near each end that they can move or play on each other in the direction of their length. l v
3. A pair of corsetsprings, each spring consisting of two or more metallic plates placed one on another, and so connected as to prevent them from sliding off each other laterally, and
to admit of their playing or sliding on each other in the direction of their length, the pair being provided with a clasp or elasps, by which the two members of the pair can be connected and disconnected. I
FRANCES LEE EGBERT, Erecutrix. Witnesses:
WESLEY EGBERT, N. E. OoLEs.

https://patents.google.com/patent/USRE5216E/en

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