Liberty Leather Products Co. v. VT International Ltd.

894 F. Supp. 136, 37 U.S.P.Q. 2d (BNA) 1342, 1995 U.S. Dist. LEXIS 10548, 1995 WL 447277
CourtDistrict Court, S.D. New York
DecidedJuly 27, 1995
Docket94 Civ. 7857 (CBM)
StatusPublished
Cited by2 cases

This text of 894 F. Supp. 136 (Liberty Leather Products Co. v. VT International Ltd.) is published on Counsel Stack Legal Research, covering District Court, S.D. New York primary law. Counsel Stack provides free access to over 12 million legal documents including statutes, case law, regulations, and constitutions.

Bluebook
Liberty Leather Products Co. v. VT International Ltd., 894 F. Supp. 136, 37 U.S.P.Q. 2d (BNA) 1342, 1995 U.S. Dist. LEXIS 10548, 1995 WL 447277 (S.D.N.Y. 1995).

Opinion

MEMORANDUM OPINION ON MOTION FOR PARTIAL SUMMARY JUDGEMENT

MOTLEY, District Judge.

I. BACKGROUND.

This case for patent infringement centers on the sort of dispute over a mere improvement in gadgetry from which the United States Supreme Court sought to liberate the Federal District Courts with its opinion in Graham v. John Deere Co., 383 U.S. 1, 86 S.Ct. 684, 15 L.Ed.2d 545 (1966). Plaintiff Liberty Leather Products Co., Inc. (“Leather”) is a New York corporation with its principal place of business at 165 Classon Avenue in BrooHyn, New York. Defendant VT International Ltd. (“VT”) is a New York corporation with its principal place of business at 295 Fifth Avenue in New York City, New York. Leather is the owner of United States Patent No. 5,291,976 (the “Leather Patent”) which covers an improvement in luggage. Leather contends that VT has knowingly, intentionally, and willfully made, offered for sale, and sold a luggage product which infringes the Leather Patent. Leather is seeking an injunction, an accounting for profits and damages, the trebling of said award, and interest, attomeys’s fees, and costs.

Defendant has filed a motion for partial summary judgement on the issue of obviousness. 1 The court heard oral argument on the motion on June 29, 1995. As discussed below, VT has successfully demonstrated that Leather’s alleged invention would have been obvious, in light of the prior art, to a person having ordinary skill in the pertinent art. Therefore, Defendant’s motion is granted.

A The Invention Covered by the Leather Patent.

As described by Leather itself, the alleged invention is an improved wheeled suitcase *138 and luggage support structure which includes (1) a rectangular frame with two horizontal and two vertical members; (2) wheels on the lower horizontal members; (3) a pull-up handle connected to the rectangular frame; and (4) a wedging member, preferably frustoconieal in shape, frictionally received in a bore which keeps the pull-up handle in a fully extended position. According to the Leather Patent, the suitcase can be attached to the rectangular frame either permanently by the use of screws or rivets to fasten the suitcase to the frame or temporarily by the use of straps or elastic cords to hold the suitcase in place. See Leather Patent, col. 3, lines 19-30.

Leather claims to have obtained several advantages from this design. The use of the wedging member frictionally received in a bore allows a user to engage and disengage the pull-up handle with only one, rather than two, hands. No space in the suitcase is used by the wheels, rectangular frame, or pull-up handle. The combination is easily manufactured by placing the wheels on the lower horizontal member of the rectangular frame and connecting the pull-up handle to the rectangular frame, rather than attaching these parts to the suitcase itself. Finally, since the wedging member frictionally engages a bore to hold the handle fully extended, as the wedging member wears, it is forced further into the bore, thus giving this mechanism a longer useful life than other locking mechanisms.

B. The Prior Art.

VT directs the court to a wide array of prior art references. The first is United States Patent No. 4,995,487 for a wheeled suitcase and luggage support invented by Robert V. Plath (hereinafter the “Plath Patent”). The Plath Patent covers “a rollaboard, carry-on size suitcase with built in wheels and a retractable, friction-locking handle.” Plath Patent, col. 1, lines 7-9. As VT readily concedes, neither the handle nor the wheels of the Plath device are part of an external cart and both of these elements invade the interior of the suitcase carrying space. See Plath Patent, col. 1, lines 45-60. However, a critical feature of the Plath Patent is the nature of its handle-locking mechanism:

To effect extension of the handle, gripping means may be grasped and pulled upwardly. "When the handle has reached its maximum extension, the offset guide means wedge the lower end segment of rod against sleeve and brushing means, binding said handle frictionally in position for use---- To retract the handle, downward pressure is applied to the gripping means sufficient to overcome the friction force of rod against the inner through-bore of brushing means and sleeve, forcing the offset guide means downward and out of its jammed position at the head of sleeve and into the lower area ... of sleeve member.

Plath Patent, col. 3, lines 47-65 (numerical references excluded).

Another important prior art reference is United States Patent No. 3,998,476 which covers a portable luggage carrier with telescoping handle invented by Eugene Anthony Kazmark, Sr. (hereinafter the “Kazmark Patent”). As is readily apparent from the figures accompanying this patent, Kazmark’s device is a cart which is intended to be attached externally to a piece of luggage. The vertical elements of this cart are each comprised of a lower, intermediate, and upper telescopically related tube. Kazmark Patent, col. 2, lines 23-31. The upper tubes are horizontally connected by a gripping handle. Kazmark Patent, col. 2, lines 28-30. The vertical elements can be locked in their fully extended position by the use of a pair of locking mechanisms on each element. These locking mechanisms each consist of a spring-loaded button-shaped element which is forced through a matching hole in the given tube when the vertical elements are extended. Kazmark Patent, col. 2, lines 32-63. Operation of these mechanisms to collapse the vertical elements into their shortest extension requires the use of both hands. Kazmark Patent, col.3, lines 17-68; col. 4, lines 1-29. Finally, the wheels of this cart are attached to an axle which is part of the base of the cart. Kazmark Patent, col. 1, lines 63-66.

A third reference is United State Patent No. 5,024,455 which covers a luggage cart *139 invented by Ray B. Schrecongost (hereinafter the “Schrecongost Patent”). This patent discloses an external rectangular frame with two horizontal members, two vertical members, wheels attached to an axle on the base of the frame, and a telescopically extendable U-shaped handle. See Schrecongost Patent, col. 3, lines 21-33. The locking mechanism for the handle uses spring-loaded detents to engage either of two pairs of notches in the U-shaped handle to hold the handle in either the extended or the collapsed position. Schrecongost Patent, col. 5, lines 36-68; col. 6, lines 1-4. Brackets of varying sizes can be attached to the upper and lower horizontal members to be used to secure a piece of luggage to the frame either temporarily or permanently. Schrecongost Patent, col. 3, lines 33-41; col. 5, lines 3-35.

Other references cited by the Defendant include United States Patent No. 4,743,038 which covers a carrying case and cart invented by Jay E. Myers, et al. (hereinafter the “Myers Patent”); United States Patent No. 4,340,132 which covers a suitcase and cart assembly invented by Juan F. Cerna (hereinafter the “Cerna Patent”); and United States Patent No.

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894 F. Supp. 136, 37 U.S.P.Q. 2d (BNA) 1342, 1995 U.S. Dist. LEXIS 10548, 1995 WL 447277, Counsel Stack Legal Research, https://law.counselstack.com/opinion/liberty-leather-products-co-v-vt-international-ltd-nysd-1995.