US4887874A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Knockdown drawers and bins
Assignee: Individual
•
Filing: 1989-03-16
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Granted: 1989-12-19
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Expires: 2009-03-16
Abstract
Abstract Knockdown units forming drawers or bins include a one-piece molded plastic bottom and side panel unit with the side panels being connected to the bottom panel by reduced thickness thickness zones and molded plastic front and rear panels. Interengaging connecting means are formed integrally at the upper portions of the side panels and the upper ends of the front and rear panels.
Inventors
- 👤 Edward J. Joffe
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 03:09
CPC Classifications
A; A47; A47B; A47B88/00; A47B88/90; A47B88/941; A47B88/9412; A47B88/9418
Claims Analysis
Total Claims: 7
Claim 1
Independent Claim
159 words
A knockdown drawer and bin assembly comprising: a one-piece molded plastic bottom and side panel unit having a rectangular bottom panel with upwardly extending side flanges, and a pair of side panels connected, respectively, to opposite sides of said bottom panel by reduced thickness hinge zones, each side panel having a side wall, end flanges projecting from the lateral edges of said side wall, said side flanges of said bottom panel and said end flanges of said side panels together forming the peripheral portions of the front and rear faces of the assembly in its erected configuration, and, adjacent each upper corner of said side panel, at least one projection attached to and extending inwardly from said end flange; and front and rear panels, each of said front and rear panels being of one-piece molded plastic construction and each having, adjacent the upper corners thereof, at least one opening therein for reception of the corresponding one of said projections.
Claim 2
Dependent Claim
159 words
A knockdown drawer and bin assembly comprising: a one-piece molded plastic bottom and side panel unit having a rectangular bottom panel with upwardly extending side flanges, and a pair of side panels connected, respectively, to opposite sides of said bottom panel by reduced thickness hinge zones, each side panel having a side wall, end flanges projecting from the lateral edges of said side wall, said side flanges of said bottom panel and said end flanges of said side panels together forming the peripheral portions of the front and rear faces of the assembly in its erected configuration, and, adjacent each upper corner of said side panel, at least one projection attached to and extending inwardly from said end flange; and front and rear panels, each of said front and rear panels being of one-piece molded plastic construction and each having, adjacent the upper corners thereof, at least one opening therein for reception of the corresponding one of said projections.
Claim 3
Dependent Claim
66 words
The assembly of claim 1 wherein each of said front and rear panels has end portions and wherein each side panel further includes, adjacent each upper corner of said side wall, a tab defined by a U-shaped notch in said side wall, said tab having an inwardly directed projection for engaging the inner face of the adjacent one of said front and rear panel end portions.
Claim 4
Dependent Claim
34 words
The assembly of claim 2 further including a one-piece liner overlying said bottom panel, said side panels and the areas between said front and rear panels and the corresponding edges of said bottom panel.
Claim 5
Dependent Claim
59 words
The assembly of claim 1 wherein each of said front and rear panels includes a central wall portion and lower and side wall portions connected to and offset from said central wall portion, said lower and said wall portions abutting the inner faces of said bottom panel side flanges and side panel end flanges, respectively, in the assembled configuration.
Claim 6
Dependent Claim
32 words
The assembly of claim 4 wherein said bottom and side panels include ribs spaced from side and end flanges, respectively, to define grooves for reception of said lower and side wall portions.
Claim 7
Dependent Claim
37 words
The assembly of claim 4 wherein said side flanges of said bottom panel have inwardly projecting lugs at spaced intervals on the inner face thereof and said lower wall portions include openings for receiving said lastmentioned lugs.
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) | 1992-12-18 | 1993-06-19 | 1993-12-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1996-12-18 | 1997-06-19 | 1997-12-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2000-12-18 | 2001-06-19 | 2001-12-19 | $7700.00 | Window Closed / Lapsed |