US3887234A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Furniture subframe
Assignee: Hercules LLC
•
Filing: 1974-03-28
•
Granted: 1975-06-03
•
Expires: 1994-03-28
Abstract
Abstract The invention is a structural foam furniture subframe which replaces the customary assembly of wooden pieces with a unitary, load bearing, injection molded, plastic space frame of angularly jointed plate sections, said subframe including at least one peripheral load bearing recepticle having at least four plate sections that are each connected at one end thereof to and radiating outwardly from the periphery of said receptical, said subframe having attachment surfaces on all sides thereof and having novel fastener attachment sections to accommodate conventional wood type fasteners.
Inventors
- 👤 William R Curtis
- 👤 David C Trimble
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 12:07
CPC Classifications
A; A47; A47C; A47C5/00; A47C5/12; Y; Y10; Y10S; Y10S297/00; Y10S297/02
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
109 words
A furniture subframe comprising: a pair of symmetrical load bearing, unitary, plastic subframes, each of said subframes being comprised of a plurality of joined plate sections, said subframes being disposed in essentially parallel, mirror image like spaced apart relationship to each other, each of said subframes including at least one load bearing recepticle integral with said subframe, said recepticles each having at least four plate sections each connected at one end thereof to and radiating outwardly from the sides of said recepticles to brace said recepticles and interconnect said recepticles with said subframes; and an interconnecting member having opposite ends thereof contained within said recepticles to connect said subframes.
Claim 2
Dependent Claim
109 words
A furniture subframe comprising: a pair of symmetrical load bearing, unitary, plastic subframes, each of said subframes being comprised of a plurality of joined plate sections, said subframes being disposed in essentially parallel, mirror image like spaced apart relationship to each other, each of said subframes including at least one load bearing recepticle integral with said subframe, said recepticles each having at least four plate sections each connected at one end thereof to and radiating outwardly from the sides of said recepticles to brace said recepticles and interconnect said recepticles with said subframes; and an interconnecting member having opposite ends thereof contained within said recepticles to connect said subframes.
Claim 3
Dependent Claim
109 words
A furniture subframe comprising: a pair of symmetrical load bearing, unitary, plastic subframes, each of said subframes being comprised of a plurality of joined plate sections, said subframes being disposed in essentially parallel, mirror image like spaced apart relationship to each other, each of said subframes including at least one load bearing recepticle integral with said subframe, said recepticles each having at least four plate sections each connected at one end thereof to and radiating outwardly from the sides of said recepticles to brace said recepticles and interconnect said recepticles with said subframes; and an interconnecting member having opposite ends thereof contained within said recepticles to connect said subframes.
Claim 4
Dependent Claim
109 words
A furniture subframe comprising: a pair of symmetrical load bearing, unitary, plastic subframes, each of said subframes being comprised of a plurality of joined plate sections, said subframes being disposed in essentially parallel, mirror image like spaced apart relationship to each other, each of said subframes including at least one load bearing recepticle integral with said subframe, said recepticles each having at least four plate sections each connected at one end thereof to and radiating outwardly from the sides of said recepticles to brace said recepticles and interconnect said recepticles with said subframes; and an interconnecting member having opposite ends thereof contained within said recepticles to connect said subframes.
Claim 5
Dependent Claim
33 words
Subframes as in claim 1 wherein said further included leg attachment areas, said areas being a plurality of spaced essentially parallel plates which approximates spans and provide bearing surfaces for wood type fasteners.
Claim 6
Dependent Claim
17 words
Subframes as in claim 2 wherein said subframes further includes upholstery tacking surfaces on all sides thereof.
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) | 1978-06-02 | 1978-12-02 | 1979-06-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1982-06-02 | 1982-12-02 | 1983-06-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1986-06-02 | 1986-12-02 | 1987-06-03 | $7700.00 | Window Closed / Lapsed |