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US4903614A Expired / Lapsed US ⏱️ 0.0 years remaining

Multi-functional table

Assignee: Individual
•
Filing: 1989-05-10
•
Granted: 1990-02-27
•
Expires: 2009-05-10
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Abstract

Abstract A multi-functional table of adjustable height has concealed supplementary legs capable of being swung downwardly to effectively extend the lengths of the four main legs of the table. The supplementary legs are concealed within housings that extend between the lower extremities of adjacent main legs. A release mechanism, operable from above the housings, controls the release of the supplementary legs. The deployed supplementary legs are secured by an upward sliding motion.

Inventors

  • 👤 John S. Johnson

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-11-05 22:54
CPC Classifications
A; A47; A47B; A47B3/00; A47B3/08; A47B2200/00; A47B2200/0035; A47B2200/0039

Claims Analysis

Total Claims: 6
Claim 1
Independent Claim 179 words
A multi-functional table of adjustable height comprising: (a) a flat top panel having upper and lower surfaces and adapted to be horizontally disposed, (b) four straight main legs extending vertically downwardly from said top panel in a rectangular locus, said main legs being in fixed engagement with said top panel, and having lower extremities disposed in a horizontal plane, (c) paired straight hollow housings in opposed parallel relationship, each housing extending between the lower extremities of two opposed contiguous main legs, said housings having open bottom portions, and end portions adjacent each main leg, (d) two straight supplementary legs stored within each housing, each supplementary leg having a proximal extremity pivotably secured to the housing adjacent the lower extremity of a main leg, and a distal extremity adapted to swing downwardly into a deployed mode in vertical alignment with an associated main leg, (e) holding means located within the end portions of each housing for securing each supplementary leg in its deployed mode, and (f) retaining means associated with each housing for preventing inadvertent deployment of the supplementary legs.
Claim 2
Dependent Claim 179 words
A multi-functional table of adjustable height comprising: (a) a flat top panel having upper and lower surfaces and adapted to be horizontally disposed, (b) four straight main legs extending vertically downwardly from said top panel in a rectangular locus, said main legs being in fixed engagement with said top panel, and having lower extremities disposed in a horizontal plane, (c) paired straight hollow housings in opposed parallel relationship, each housing extending between the lower extremities of two opposed contiguous main legs, said housings having open bottom portions, and end portions adjacent each main leg, (d) two straight supplementary legs stored within each housing, each supplementary leg having a proximal extremity pivotably secured to the housing adjacent the lower extremity of a main leg, and a distal extremity adapted to swing downwardly into a deployed mode in vertical alignment with an associated main leg, (e) holding means located within the end portions of each housing for securing each supplementary leg in its deployed mode, and (f) retaining means associated with each housing for preventing inadvertent deployment of the supplementary legs.
Claim 3
Dependent Claim 25 words
The table of claim 1 wherein a sidewall extends upwardly from said top panel in a manner to secure a pillow placed upon said panel.
Claim 4
Dependent Claim 15 words
The table of claim 1 wherein said supplementary legs are deployable by gravity force alone.
Claim 5
Dependent Claim 11 words
The table of claim 1 wherein said retaining means employ magnets.
Claim 6
Dependent Claim 41 words
The table of claim 1 wherein said holding means comprises an abutment structure accurately spaced apart from the associated main leg to permit the associated supplementary leg to slide upwardly to be frictionally gripped between said abutment structure and main leg.

References Cited (Backward Citations)

US36781A Cited
US732585A Cited
US1039868A Cited
US2398693A Cited
US2678858A Cited
US4237795A Cited
US4462636A Cited

USPTO Annuity & Maintenance Windows

Annuity Stage Window Opens Payment Deadline Surcharge Period Until Estimated Fee Status
3.5 Years (Year 4) 1993-02-26 1993-08-28 1994-02-27 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1997-02-26 1997-08-28 1998-02-27 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 2001-02-26 2001-08-28 2002-02-27 $7700.00 Window Closed / Lapsed

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