US4949518A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Space-dividing wall panel
Assignee: Knoll Inc
•
Filing: 1986-06-06
•
Granted: 1990-08-21
•
Expires: 2006-06-06
Abstract
Abstract A decorative, lightweight, sound absorbent, fire resistant, space-dividing wall panel for use in open office systems which includes a foamed in-place gypsum core surrounded by a metal frame and a uniform cover material covering the foam sides and substantial portion of the metal frame. The cover material is preferably a polyurethane-backed fabric and may include a relief design of a preselected geometric pattern therein.
Inventors
- 👤 Russell A. Nagel
- 👤 Paul R. Walker
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 10:48
CPC Classifications
E; E04; E04B; E04B2/00; E04B2/74; E04B2/7407; E04B2/7416; E04B2002/7479
Claims Analysis
Total Claims: 13
Claim 1
Independent Claim
71 words
A space-dividing wall panel for use in open office space-dividing wall panel systems, said wall panel comprising: a rectangular outer frame defining the top, bottom and side edges of said panel; a foamed in-place gypsum foam filler filling the space surrounded by said outer frame and constituting a panel core having planar lateral surfaces; and a decorative fabric cover covering said planar surfaces of said core and secured to said frame.
Claim 2
Dependent Claim
71 words
A space-dividing wall panel for use in open office space-dividing wall panel systems, said wall panel comprising: a rectangular outer frame defining the top, bottom and side edges of said panel; a foamed in-place gypsum foam filler filling the space surrounded by said outer frame and constituting a panel core having planar lateral surfaces; and a decorative fabric cover covering said planar surfaces of said core and secured to said frame.
Claim 3
Dependent Claim
18 words
The space-dividing wall panel according to claim 1, wherein said decorative fabric cover includes a relief design therein.
Claim 4
Dependent Claim
32 words
The space-dividing wall panel according to claim 1, wherein said rectangular outer frame is of rectangular tubular construction having a flat inner surface defining the perimeter of said space and said core.
Claim 5
Dependent Claim
48 words
The space-dividing wall panel according to claim 3, wherein a rigid septum is connected to the inner surfaces of said outer frame dividing the space surrounded by said outer frame and said foamed in-place gypsum foam fills the remainder of said space on each side of said septum.
Claim 6
Dependent Claim
26 words
The space-dividing wall panel according to claim 1, wherein said decorative cover includes a fabric outer surface having a polyurethane backing and a relief design therein.
Claim 7
Dependent Claim
28 words
The space-dividing wall panel according to claim 1, wherein said rectangular outer frame is C-shaped in cross-section and includes elongated leg portions which extend into said gypsum foam.
Claim 8
Dependent Claim
71 words
A space-dividing wall panel for use in an open office space-dividing wall panel system, said wall panel comprising: an outer frame having top, bottom and side rails; a core material filling the space defined by said outer frame, said core material having substantially planar outer surfaces; and a decorative fabric cover material covering said planar outer surfaces of said core material, said decorative fabric cover having a preselected relief design therein.
Claim 9
Dependent Claim
71 words
A space-dividing wall panel for use in an open office space-dividing wall panel system, said wall panel comprising: an outer frame having top, bottom and side rails; a core material filling the space defined by said outer frame, said core material having substantially planar outer surfaces; and a decorative fabric cover material covering said planar outer surfaces of said core material, said decorative fabric cover having a preselected relief design therein.
Claim 10
Dependent Claim
19 words
The space-dividing wall panel according to claim 7, wherein said decorative fabric cover material has a polyurethane backing thereon.
Claim 11
Dependent Claim
18 words
The space-dividing wall panel according to claim 7, wherein said core material is a foamed in-place gypsum foam.
Claim 12
Dependent Claim
28 words
The space-dividing wall panel according to claim 9, wherein a septum is connected to the inside surface of said frame rails dividing said core into two separate halves.
Claim 13
Dependent Claim
27 words
The space-dividing wall panel according to claim 9, wherein said frame rails are C-shaped in cross-section and include elongated leg portions which extend into said gypsum foam.
References Cited (Backward Citations)
US4083160A
Cited
US4084367A
Cited
US4021973A
Cited
US4310995A
Cited
US4296579A
Cited
US4246733A
Cited
US4356672A
Cited
US4409768A
Cited
US4391073A
Cited
US4446663A
Cited
US4437278A
Cited
US4601137A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1993-08-20 | 1994-02-19 | 1994-08-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1997-08-20 | 1998-02-19 | 1998-08-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2001-08-20 | 2002-02-19 | 2002-08-21 | $7700.00 | Window Closed / Lapsed |