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US4611852A Expired / Lapsed US ⏱️ 0.0 years remaining

Bleacher back-rest

Assignee: Individual
•
Filing: 1984-10-25
•
Granted: 1986-09-16
•
Expires: 2004-10-25
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Abstract

Abstract A seat structure comprised of rigid molded plastic parts and the like interconnecting to form a back-rest for use upon bleachers and the like, subsequently interconnecting for carrying. The back portion is molded in a form possessing tongues that insert through slots in the seat portion wherein the said back portion is anchored into and supported by the said seat portion. A stabilizer in the form of a channel shaped molded plastic part is attached to the underside of the said seat portion anchoring the said back-rest. In transport the tongues of the said back portion insert through the slots of the said seat portion on the opposite side. A transverse slot in the said stabilizer receives the upper portion of the said back portion securing the said seat and back portions in a vertical carrying position.

Inventors

  • 👤 Paul G. Filer

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-11-03 18:14
CPC Classifications
A; A47; A47C; A47C1/00; A47C1/16

Claims Analysis

Total Claims: 2
Claim 1
Independent Claim 130 words
A molded seat structure comprised of three main parts; the back formed of sheet material substantially rectangular possessing tongues that extend down and frontward; the bottom formed of sheet material substantially rectangular possessing slots that correspond with the said tongues of the said back interlocking to accomodate the said tongues of the said back thereby conecting to form a seat and back structure; the third main part depending from the front of the said seat acts as an anchor securing the said structure to bleachers and the like; the transverse slot in the said anchor receives the upper portion of the said back; the said tongues of the said back insert through the said corresponding slots of the said seat inter-connecting the parts in a vertical knock down carrying position.
Claim 2
Dependent Claim 130 words
A molded seat structure comprised of three main parts; the back formed of sheet material substantially rectangular possessing tongues that extend down and frontward; the bottom formed of sheet material substantially rectangular possessing slots that correspond with the said tongues of the said back interlocking to accomodate the said tongues of the said back thereby conecting to form a seat and back structure; the third main part depending from the front of the said seat acts as an anchor securing the said structure to bleachers and the like; the transverse slot in the said anchor receives the upper portion of the said back; the said tongues of the said back insert through the said corresponding slots of the said seat inter-connecting the parts in a vertical knock down carrying position.

References Cited (Backward Citations)

US475083A Cited
US882316A Cited
US1408114A Cited
US1461772A Cited
US2189520A Cited
US2710646A Cited
US2797740A Cited
US4068889A Cited

USPTO Annuity & Maintenance Windows

Annuity Stage Window Opens Payment Deadline Surcharge Period Until Estimated Fee Status
3.5 Years (Year 4) 1989-09-15 1990-03-17 1990-09-16 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1993-09-15 1994-03-17 1994-09-16 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 1997-09-15 1998-03-17 1998-09-16 $7700.00 Window Closed / Lapsed

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