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US4819303A Expired / Lapsed US ⏱️ 0.0 years remaining

Belt loop stay

Assignee: Illinois Tool Works Inc
•
Filing: 1987-10-02
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Granted: 1989-04-11
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Expires: 2007-10-02
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Abstract

Abstract An article injection molded from a thermoplastic material, e.g., a polypropylene or acetal polymer, for use as a belt loop stay. A first strip is provided at each end with a flange. When unstressed, the first strip is straight, except for the flanges. A second strip, which is thinner so as to be more flexible, is joined integrally to the flanges, so as to form a closed loop. When unstressed, the second strip is bowed toward the first strip, between the flanges. The first strip has a stiffening rib, which stiffens the first strip against flexing on lateral axes. The second strip has several stiffening ribs, which stiffen the second strip against flexing on longitudinal axes but permit the second strip to flex on lateral axes. Beveled edges on the first strip facilitate insertion of a belt from either side of the first strip.

Inventors

  • 👤 Mark J. Udelhofen

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-11-09 02:28
CPC Classifications
A; A45; A45C; A45C13/00; A45C13/30; A41; A41F; A41F9/00; A41F9/007; Y; Y10; Y10T; Y10T24/00; Y10T24/40; Y10T24/4002; Y10T24/4028; Y10T24/4033; Y10T24/4047; Y10T24/44; Y10T24/44641; Y10T24/44744; Y10T24/44752

Claims Analysis

Total Claims: 2
Claim 1
Independent Claim 171 words
For use as a belt loop stay, a one-piece article fabricated into a closed loop from a flexible material comprising first and second elongated strips joined together at each end by a flange to define said closed loop, where said first strip when unstressed is straight and substantially in a right angle relationship to the end flanges and where said second strip is more flexible than said first strip and when unstressed is bowed towards said first strip between the end flanges, and a continuous reinforcing rib extending longitudinally along the centerline of the entire length of said strip and along the centerline of the entire length of each of said end flanges, said first and second strips and said end flanges having the same width to provide said closed loop one-piece article with constant width wherein said second strip has a plurality of stiffening ribs extending laterally across said second strip in the middle portion of its length and wherein said first strip has beveled edges facing said second strip.
Claim 2
Dependent Claim 171 words
For use as a belt loop stay, a one-piece article fabricated into a closed loop from a flexible material comprising first and second elongated strips joined together at each end by a flange to define said closed loop, where said first strip when unstressed is straight and substantially in a right angle relationship to the end flanges and where said second strip is more flexible than said first strip and when unstressed is bowed towards said first strip between the end flanges, and a continuous reinforcing rib extending longitudinally along the centerline of the entire length of said strip and along the centerline of the entire length of each of said end flanges, said first and second strips and said end flanges having the same width to provide said closed loop one-piece article with constant width wherein said second strip has a plurality of stiffening ribs extending laterally across said second strip in the middle portion of its length and wherein said first strip has beveled edges facing said second strip.

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USPTO Annuity & Maintenance Windows

Annuity Stage Window Opens Payment Deadline Surcharge Period Until Estimated Fee Status
3.5 Years (Year 4) 1992-04-10 1992-10-10 1993-04-11 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1996-04-10 1996-10-10 1997-04-11 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 2000-04-10 2000-10-10 2001-04-11 $7700.00 Window Closed / Lapsed

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