Patent US6378944B1 successfully refreshed from Google Patents.
US6378944B1
Expired / Lapsed
US
⏱️ 0.0 years remaining
Seat and/or back of seat cover for a chair
Assignee: Koenig and Neurath AG
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Filing: 2000-08-03
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Granted: 2002-04-30
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Expires: 2020-08-03
Abstract
Abstract The invention relates to a seat and/or backrest covering for a chair, in particular an office chair, having a frame-tensioned mesh-like fabric ( 3 ), which is penetrated by a large number of pins ( 4 ) provided on the periphery of a load-bearing frame ( 1 ) that surrounds the seat or backrest, and is held by means of a covering frame ( 2 ) fitted onto the load-bearing frame ( 1 ).
Inventors
- 👤 Frank Weisser
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 10:22
CPC Classifications
A; A47; A47C; A47C7/00; A47C7/02; A47C7/28; A47C7/282; A47C31/00; A47C31/02; A47C31/023; A47C7/36; A47C7/40
Claims Analysis
Total Claims: 16
Claim 1
Independent Claim
52 words
A covering for a chair, comprising: a mesh fabric; a load-bearing frame having a plurality of pins projecting from a periphery thereof and penetrating said mesh fabric; and a covering frame fitted onto said load-bearing frame for holding taut said mesh fabric to form a seat or backrest surface of a chair.
Claim 2
Dependent Claim
52 words
A covering for a chair, comprising: a mesh fabric; a load-bearing frame having a plurality of pins projecting from a periphery thereof and penetrating said mesh fabric; and a covering frame fitted onto said load-bearing frame for holding taut said mesh fabric to form a seat or backrest surface of a chair.
Claim 3
Dependent Claim
18 words
The covering according to claim 1 , wherein said covering frame is provided for tensioning said mesh fabric.
Claim 4
Dependent Claim
23 words
The covering according to claim 1 , wherein said covering frame and said load-bearing frame are provided with a mutually interengaging tongue-and-groove joint.
Claim 5
Dependent Claim
24 words
The covering according to claim 3 , wherein said tongue-and-groove joint is formed underneath said pins on respective frame faces, facing said mesh fabric.
Claim 6
Dependent Claim
27 words
The covering according to claim 3 , wherein said tongue-and-groove joint comprises a groove formed in said load-bearing frame and a tongue formed on said covering frame.
Claim 7
Dependent Claim
26 words
The covering according to claim 3 , wherein said tongue-and-groove joint comprises a groove in said covering frame and a tongue formed on said load-bearing frame.
Claim 8
Dependent Claim
22 words
The covering according to claim 1 , wherein said pins are arranged along a single peripheral comb-shaped row on said load-bearing frame.
Claim 9
Dependent Claim
23 words
The covering according to claim 1 , wherein said pins are arranged along a plurality of peripheral comb-shaped rows on said load-bearing frame.
Claim 10
Dependent Claim
26 words
The covering according to claim 1 , wherein said covering frame has an inner side, facing said pins, formed with a peripheral groove accommodating said pins.
Claim 11
Dependent Claim
21 words
The covering according to claim 9 , wherein said groove is formed to clamp around said pins with a form fit.
Claim 12
Dependent Claim
27 words
The covering according to claim 1 , wherein said covering frame has an inner side, facing said pins, formed with a row of holes accommodating said pins.
Claim 13
Dependent Claim
23 words
The covering according to claim 11 , wherein said pins are formed with pinheads latching into respective holes in said row of holes.
Claim 14
Dependent Claim
13 words
The covering according to claim 12 , wherein said pinheads are spherical pinheads.
Claim 15
Dependent Claim
29 words
In combination with a chair having a seat, the covering according to claim 1 , wherein said load-bearing frame and said covering frame surround the seat of the chair.
Claim 16
Dependent Claim
29 words
In combination with a chair having a backrest, the covering according to claim 1 , wherein said load-bearing frame and said covering frame surround the backrest of the chair.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 2005-04-29 | 2005-10-29 | 2006-04-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2009-04-29 | 2009-10-29 | 2010-04-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2013-04-29 | 2013-10-29 | 2014-04-30 | $7700.00 | Window Closed / Lapsed |