Patent US3842452A successfully refreshed from Google Patents.
US3842452A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Body supporting frame structure
Assignee: Bekaert NV SA
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Filing: 1973-08-24
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Granted: 1974-10-22
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Expires: 1993-08-24
Abstract
Abstract A body supporting frame structure in which parallel crossgirders having longitudinal apertures along the edges thereof are secured between two opposite longitudinal girders wherein at least the apertures at the edges of the cross-girders are provided with a wire or bar disposed in the longitudinal apertures and convexly bent in the longitudinal direction of the cross-girders.
Inventors
- 👤 A Kievits
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 06:32
CPC Classifications
A; A47; A47C; A47C23/00; A47C23/02; A47C23/06; A47C23/061
Claims Analysis
Total Claims: 8
Claim 1
Independent Claim
70 words
A body supporting furniture frame structure comprising two opposite longitudinal girders, a plurality of parallel crossgirders secured between said longitudinal girders, the longitudinal edges of each of said cross-girders being provided with a lengthwise aperture, and a wire or bar disposed through each of said lengthwise apertures, said wire or bar being convexly bent in the longitudinal direction of said crossgirders, said cross girders being constructed of flexible plastic material.
Claim 2
Dependent Claim
70 words
A body supporting furniture frame structure comprising two opposite longitudinal girders, a plurality of parallel crossgirders secured between said longitudinal girders, the longitudinal edges of each of said cross-girders being provided with a lengthwise aperture, and a wire or bar disposed through each of said lengthwise apertures, said wire or bar being convexly bent in the longitudinal direction of said crossgirders, said cross girders being constructed of flexible plastic material.
Claim 3
Dependent Claim
27 words
A structure according to claim 1 wherein each of said wires or bars is adapted to be loosely inserted into a lengthwise aperture of its associated cross-girder.
Claim 4
Dependent Claim
40 words
A structure according to claim 1 including a plurality of connecting members each of which is adapted to tightly connect together one of said cross-girders and its associated wires or bars in the cross direction at least in one place.
Claim 5
Dependent Claim
30 words
A structure according to claim 3 wherein said cross girders and their associated wires or bars are connected together by said connecting members at approximately the middle of each cross-girder.
Claim 6
Dependent Claim
30 words
A structure according to claim 3 wherein each of said connecting members is substantially flat and has a width which is substantially equal to the width of its associated cross-girder.
Claim 7
Dependent Claim
14 words
A structure according to claim 1 wherein said cross-girders are constructed of extruded plastic.
Claim 8
Dependent Claim
28 words
A structure according to claim 1 wherein said cross-girders include at least one lengthwise aperture in addition to and intermediate the two apertures disposed at the edges thereof.
References Cited (Backward Citations)
US140284A
Cited
US1052706A
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US2476820A
Cited
US2587698A
Cited
US3067438A
Cited
US3480323A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1977-10-21 | 1978-04-22 | 1978-10-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-10-21 | 1982-04-22 | 1982-10-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-10-21 | 1986-04-22 | 1986-10-22 | $7700.00 | Window Closed / Lapsed |