Patent US4576309A successfully refreshed from Google Patents.
US4576309A
Expired / Lapsed
US
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Food container
Assignee: Cidelcem SA
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Filing: 1985-07-17
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Granted: 1986-03-18
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Expires: 2005-07-17
Abstract
Abstract A food container comprises a bottom (3) which is substantially rectangular and which has outwardly flared walls (4) rising therefrom and terminating in a substantially rectangular opening (7). The tops of the walls are outwardly surrounded by a horizontal rim (5) which is rectangular in shape and they are capped by a vertical rib (6) extending above the rim (5). The container has a cover (2) having a horizontal rim (8) and a vertical rib (9) extending downwardly therefrom suitable for engaging around the vertical rib (6) of the container (1). The vertical ribs (6, 9) being of substantially the same height on the container (1) and the cover (2). The cover rib (9) has a plurality of shoulders (16) near the top thereof for co-operating with the container rib (6), and enabling an upper position and a lower position to be defined for the cover (2) on the container (1).
Inventors
- 👤 Guy Tzifkansky
- 👤 Jean-Claude Marchais
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 21:58
CPC Classifications
B; B65; B65D; B65D51/00; B65D51/16; B65D51/1605; B65D51/1622; B65D51/1627; A; A47; A47G; A47G19/00; A47G19/26; A47J; A47J47/00; A47J47/02; A47J47/08; A47J47/10; B65D21/00; B65D21/02; B65D21/0209; B65D21/0217; B65D21/0219; B65D43/00; B65D43/02; B65D43/0202; B65D43/0204; B65D43/0212; B65D43/0214; B65D43/0222; B65D2205/00; B65D2543/00; B65D2543/00009; B65D2543/00018; B65D2543/00064; B65D2543/0012; B65D2543/00175; B65D2543/00194; B65D2543/00212; B65D2543/0025; B65D2543/00259; B65D2543/00296; B65D2543/00444; B65D2543/00481; B65D2543/0049; B65D2543/00527; B65D2543/00537; B65D2543/00574; B65D2543/00592; B65D2543/00601; B65D2543/00611; B65D2543/00629; B65D2543/00675; B65D2543/00694; B65D2543/00712; B65D2543/00722; B65D2543/0074; B65D2543/00787; B65D2543/00805
Claims Analysis
Total Claims: 8
Claim 1
Independent Claim
218 words
A vertically upwardly open food container having a substantially rectangular horizontal bottom and integral flared upright walls terminating in a substantially rectangular horizontal opening and including a horizontal rim near the top thereof which is outwardly rectangular in shape and which surrounds the opening to the container, and a vertical rib extending the walls above the rim, said container being provided with a horizontal cover including firstly a horizontal rim and secondly a vertical rib projecting beneath the rim and engaging around the vertical rib of the container, with the vertical rib of the container having substantially the same height as the vertical rib of the cover, the container including the improvement whereby the cover rib includes a plurality of shoulders adjacent its top connection to the cover for engaging with the container rib in such a manner that in a first position the cover is in a high position with the bottom of the cover rib being raised above the container rim, and in a second position with the cover being low relative to the first position, the bottom of the cover rib comes close to or into contact with the container rim, whereby, with the cover rib being at a distance from the container rib in the first position considerable ventilation of the container interior occurs.
Claim 2
Dependent Claim
218 words
A vertically upwardly open food container having a substantially rectangular horizontal bottom and integral flared upright walls terminating in a substantially rectangular horizontal opening and including a horizontal rim near the top thereof which is outwardly rectangular in shape and which surrounds the opening to the container, and a vertical rib extending the walls above the rim, said container being provided with a horizontal cover including firstly a horizontal rim and secondly a vertical rib projecting beneath the rim and engaging around the vertical rib of the container, with the vertical rib of the container having substantially the same height as the vertical rib of the cover, the container including the improvement whereby the cover rib includes a plurality of shoulders adjacent its top connection to the cover for engaging with the container rib in such a manner that in a first position the cover is in a high position with the bottom of the cover rib being raised above the container rim, and in a second position with the cover being low relative to the first position, the bottom of the cover rib comes close to or into contact with the container rim, whereby, with the cover rib being at a distance from the container rib in the first position considerable ventilation of the container interior occurs.
Claim 3
Dependent Claim
47 words
A food container according to claim 1, wherein the container rib is fitted with notches in which the shoulders are received when the cover is in its second position, said shoulders resting on the top of the container rib when the cover is in its first position.
Claim 4
Dependent Claim
63 words
A food container according to claim 2, wherein the container rib is provided with upper and lower outwardly directed projections and wherein the cover rib is provided with inwardly directed teeth near the bottom thereof, said teeth engaging under the upper projections when the cover is in its first position and under the lower projections when the cover is in its second position.
Claim 5
Dependent Claim
48 words
A food container according to claim 1, wherein the container rib has upper and lower outwardly directed projections, and wherein the shoulders rest on the upper projections when the cover is in its first position and on the lower projections when the cover is in its second position.
Claim 6
Dependent Claim
47 words
A food container according to claim 4, wherein the cover rib has inwardly directed teeth near the bottom thereof, said teeth engaging under the upper projections when the cover is in its first position and under the lower projections when the cover is in its second position.
Claim 7
Dependent Claim
30 words
A food container according to claim 1, wherein the bottom face of the cover is provided with a second rib which is situated parallel to and inside the first rib.
Claim 8
Dependent Claim
91 words
A food container according to claim 6, wherein the top face of the cover includes a raised portion surrounding the cover and including a gap at one point, said raised portion being disposed around a rectangle which is larger than the bottom of the cover and larger than a rectangle traced by the second rib of the cover, but which is smaller than a rectangle traced by the first rib of the cover, thereby enabling covers to be stacked on one another and also enabling containers to be stacked on covers.
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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) | 1989-03-17 | 1989-09-16 | 1990-03-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1993-03-17 | 1993-09-16 | 1994-03-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1997-03-17 | 1997-09-16 | 1998-03-18 | $7700.00 | Window Closed / Lapsed |