Patent US5038531A successfully refreshed from Google Patents.
US5038531A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Wall structures
Assignee: Dolmen Engineering & Systems Ltd
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Filing: 1989-08-31
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Granted: 1991-08-13
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Expires: 2009-08-31
Abstract
Abstract An assembly for forming removable, non-load bearing walls, such as partitions for offices, fairs, exhibitions, etc., consists of a plurality of generally modular panels slidably disposed between upper and lower support rails. The panels include a substantially flat central section and projecting surfaces on the longitudinal sides thereof. In assembled condition, the projecting surfaces on adjacent panels engage one another to form a continuous wall assembly.
Inventors
- 👤 Anna Olewska
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 21:01
CPC Classifications
E; E04; E04B; E04B2/00; E04B2/74; E04B2/82
Claims Analysis
Total Claims: 17
Claim 1
Independent Claim
127 words
An extendable wall comprising, a plurality of panels each having a central portion disposed substantially in a plane, a top end, a bottom end and opposed longitudinal edges, support means for engaging said top and bottom ends of said plurality of panels for sliding movement in a direction transverse to said longitudinal edges between a collapsed position and an extended position, and engagement means disposed on said longitudinal edges of said plurality off panels and extending from opposite sides of said central portion with respect to said plane for engaging said longitudinal edges of immediately adjacent ones of said plurality of panels in said extended position, wherein said engagement means is operative to enable each of said plurality of panels to overlap only said immediately adjacent panels.
Claim 2
Dependent Claim
127 words
An extendable wall comprising, a plurality of panels each having a central portion disposed substantially in a plane, a top end, a bottom end and opposed longitudinal edges, support means for engaging said top and bottom ends of said plurality of panels for sliding movement in a direction transverse to said longitudinal edges between a collapsed position and an extended position, and engagement means disposed on said longitudinal edges of said plurality off panels and extending from opposite sides of said central portion with respect to said plane for engaging said longitudinal edges of immediately adjacent ones of said plurality of panels in said extended position, wherein said engagement means is operative to enable each of said plurality of panels to overlap only said immediately adjacent panels.
Claim 3
Dependent Claim
53 words
An extendable wall as claimed in claim 1 wherein said plurality of panels includes at least first, second and third consecutive panels and said support means comprises guide channel means including at least one guide channel member for engaging said top and bottom ends of at least said first and third consecutive panels.
Claim 4
Dependent Claim
29 words
An extendable wall as claimed in claim 1, wherein said support means comprise a single guide channel for engaging said top and bottom ends of said plurality of panels.
Claim 5
Dependent Claim
33 words
An extendable wall as claimed in claim 1 operative to support a plurality of display devices, and further comprising connecting means for connecting said plurality of display devices to said plurality of panels.
Claim 6
Dependent Claim
29 words
An extendable wall as claimed in claim 4, wherein said plurality of panels have structurally reinforced portions and said connecting means comprise slits formed in said structurally reinforced portions.
Claim 7
Dependent Claim
30 words
An extendable wall as claimed in claim 1, further comprising extension means connected to said top and bottom ends of said plurality of panels for engagement by said support means.
Claim 8
Dependent Claim
26 words
An extendable wall as claimed in claim 1, wherein said engagement means comprise longitudinal projections extending at an angle from said plane of said central portion.
Claim 9
Dependent Claim
25 words
An extendable wall as claimed in claim 7, wherein said angle is between about 15° and about 170° from said plane of said central portion.
Claim 10
Dependent Claim
33 words
An extendable wall as claimed in claim 1 operative to support a plurality of display devices, and further comprising connecting means for connecting said plurality of display devices to said plurality of panels.
Claim 11
Dependent Claim
29 words
An extendable wall as claimed in claim 9, wherein said plurality of panels have structurally reinforced portions and said connecting means comprise slits formed in said structurally reinforced portions.
Claim 12
Dependent Claim
29 words
An extendable wall as claimed in claim 1, wherein said support means comprise a single guide channel for engaging said top and bottom ends of said plurality of panels.
Claim 13
Dependent Claim
16 words
An extendable wall as claimed in claim 1, wherein said engagement means have a curvilinear cross-section.
Claim 14
Dependent Claim
16 words
An extendable wall as claimed in claim 1 wherein said engagement means have a Z-shaped cross-section.
Claim 15
Dependent Claim
41 words
An extendable wall as claimed in claim 1 wherein said support means comprises guide channel means including two guide channel members and said top and bottom ends of each of said plurality of panels engage both of said guide channel members.
Claim 16
Dependent Claim
32 words
An extendable wall as claimed in claim 6 wherein said extension means on said top ends of said panels are longer than said extension means on said bottom ends of said panels.
Claim 17
Dependent Claim
34 words
An extendable wall as claimed in claim 6 wherein said extension means on one of said top and bottom ends of said panels are retractable into said panels for disengagement from said support means.
References Cited (Backward Citations)
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Cited
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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) | 1994-08-12 | 1995-02-11 | 1995-08-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1998-08-12 | 1999-02-11 | 1999-08-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2002-08-12 | 2003-02-11 | 2003-08-13 | $7700.00 | Window Closed / Lapsed |