US4572374A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Container
Assignee: SIROTKIN CONTAINER DESIGN Inc A CORP OF NM
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Filing: 1984-08-21
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Granted: 1986-02-25
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Expires: 2004-08-21
Abstract
Abstract A four-walled, open-topped container having a lid is disclosed in which the lid is insertable into the container for storage along and against one wall of the container. The lid for the container is generally planar and has a trapezoidal shape and the four walls of the container are generally planar, are interconnected, and are joined to a bottom. A rim for engaging the lid is defined by the upper ends of the four walls. The rim is trapezoidal in shape to conform to the lid and has long and short parallel opposed sides and two converging opposed sides. The four walls converge inwardly from the rim to the bottom to a sufficient degree to permit a container to nest within a like container. In addition, the convergence of the walls which define the opposed converging sides of the rim is appropriate to permit the lid to be inserted into the container along and against the wall defining the long parallel side of the rim. With a lid so inserted into a container, containers and lids are stackable in a space-saving, nested arrangement for storage and handling.
Inventors
- 👤 Karl M. Sirotkin
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 21:00
CPC Classifications
B; B65; B65D; B65D55/00; B65D55/16; B65D21/00; B65D21/02; B65D21/06; B65D21/064; B65D43/00; B65D43/02; B65D43/0202; B65D43/0204; B65D43/0212; B65D2543/00; B65D2543/00009; B65D2543/00018; B65D2543/00064; B65D2543/0012; B65D2543/00175; B65D2543/00259; B65D2543/00296; B65D2543/00444; B65D2543/00481; B65D2543/0049; B65D2543/00509; B65D2543/00537; B65D2543/00555; B65D2543/00592; B65D2543/00601; B65D2543/00611; B65D2543/00648; B65D2543/00675; B65D2543/00685; B65D2543/00712; B65D2543/00722; B65D2543/0074; B65D2543/00787; B65D2543/00796
Claims Analysis
Total Claims: 7
Claim 1
Independent Claim
241 words
In combination, a nesting open-topped container and lid, said lid being generally planar and having edges which generally define a trapezoid having long and short generally parallel opposed sides and two converging opposed sides, said open-topped container having a rim proportioned to engage said lid which generally defines a trapezoid having long and short generally parallel opposed sides and two converging opposed sides, a bottom, and four generally planar walls being interconnected to one another, the upper ends of said walls defining said rim, the distance between the long and short parallel sides of said lid and the distance between the long and short parallel sides of said rim being not substantially greater than the depth of said container from said rim to said bottom, said walls of said container converging inwardly from said rim to said bottom with a degree of convergence sufficient to permit said container to nest within a similarly shaped container, the degree of convergence of said walls which define the opposed converging sides of said rim being such that said lid is insertable into said container along and against the wall which defines the long parallel side of said rim with said short parallel side of said lid being adjacent to said bottom of said container, whereby, a plurality of said containers and lids are stackable in a nested stack with said lids being sandwiched between adjacent walls defining the long parallel side of said rim.
Claim 2
Dependent Claim
241 words
In combination, a nesting open-topped container and lid, said lid being generally planar and having edges which generally define a trapezoid having long and short generally parallel opposed sides and two converging opposed sides, said open-topped container having a rim proportioned to engage said lid which generally defines a trapezoid having long and short generally parallel opposed sides and two converging opposed sides, a bottom, and four generally planar walls being interconnected to one another, the upper ends of said walls defining said rim, the distance between the long and short parallel sides of said lid and the distance between the long and short parallel sides of said rim being not substantially greater than the depth of said container from said rim to said bottom, said walls of said container converging inwardly from said rim to said bottom with a degree of convergence sufficient to permit said container to nest within a similarly shaped container, the degree of convergence of said walls which define the opposed converging sides of said rim being such that said lid is insertable into said container along and against the wall which defines the long parallel side of said rim with said short parallel side of said lid being adjacent to said bottom of said container, whereby, a plurality of said containers and lids are stackable in a nested stack with said lids being sandwiched between adjacent walls defining the long parallel side of said rim.
Claim 3
Dependent Claim
33 words
The container of claim 1 wherein said wall defining the long parallel side of said rim and the wall defining the short parallel side of said rim both are generally trapezoidal in shape.
Claim 4
Dependent Claim
23 words
The container of claim 2 wherein the walls defining the two converging opposed sides of said rim both are generally trapezoidal in shape.
Claim 5
Dependent Claim
33 words
The container of claim 1 wherein said lid, said rim, said walls defining the long and short parallel sides of said rim and said bottom are generally in the shape of isosceles trapezoids.
Claim 6
Dependent Claim
33 words
The container of claim 1 further comprising hinge means for hingedly attaching said lid adjacent the long parallel side of said lid to said wall defining the long parallel side of said rim.
Claim 7
Dependent Claim
34 words
The container of claim 1 further comprising stop means on the wall defining short parallel side of said rim for limiting the amount of nested insertion of a container within a similarly shaped container.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1989-02-24 | 1989-08-26 | 1990-02-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1993-02-24 | 1993-08-26 | 1994-02-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1997-02-24 | 1997-08-26 | 1998-02-25 | $7700.00 | Window Closed / Lapsed |