US4376558A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Thermal retention container
Assignee: Individual
•
Filing: 1981-03-25
•
Granted: 1983-03-15
•
Expires: 2001-03-25
Abstract
Abstract A thermal retention container for edibles, especially pizza, that is durable enough for multiple use but inexpensive of construction so as to permit early disposal is disclosed. The container is characterized by a cardboard outer housing having a pair of flanged closing panels to which housing and panels are internally affixed insulating panels. The container contains a plurality of shelves such as to permit transport and/or storage of a plurality of pizzas or the like.
Inventors
- 👤 Beverly Bandar
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 11:42
CPC Classifications
B; B65; B65D; B65D5/00; B65D5/42; B65D5/56; B65D5/44; B65D5/48; B65D5/48024; B65D5/48046; B65D5/64; B65D5/66; B65D5/6602; B65D5/6605
Claims Analysis
Total Claims: 9
Claim 1
Independent Claim
149 words
A disposable thermal retention container for edibles comprising: (a) an exterior housing of cardboard having a bottom wall, opposite side walls and top and rear walls defining an open front shell, (b) two rectangular front closing panels hinged to the front edges of two opposite walls, said panels each having flanges perpendicular to their surface on their three nonhinged edges, the front edges of the remaining two walls having notches to admit and engage the flanges on the closing panels in their closed position, (c) flat plastic foam inner panels corresponding in size to and affixed to the inner surfaces of the bottom wall, top and rear walls and front closing panels, and (d) a plurality of removable cardboard shelves held in spaced alignment parallel to said bottom wall by a plurality of pairs of plastic foam spacing means located on the inner surfaces of the opposite side walls.
Claim 2
Dependent Claim
149 words
A disposable thermal retention container for edibles comprising: (a) an exterior housing of cardboard having a bottom wall, opposite side walls and top and rear walls defining an open front shell, (b) two rectangular front closing panels hinged to the front edges of two opposite walls, said panels each having flanges perpendicular to their surface on their three nonhinged edges, the front edges of the remaining two walls having notches to admit and engage the flanges on the closing panels in their closed position, (c) flat plastic foam inner panels corresponding in size to and affixed to the inner surfaces of the bottom wall, top and rear walls and front closing panels, and (d) a plurality of removable cardboard shelves held in spaced alignment parallel to said bottom wall by a plurality of pairs of plastic foam spacing means located on the inner surfaces of the opposite side walls.
Claim 3
Dependent Claim
12 words
The container of claim 1 wherein the spacing means are individual blocks.
Claim 4
Dependent Claim
30 words
The container of claim 1 additionally comprising flat plastic foam inner panels corresponding in size to and positioned at the opposite side walls and having the spacing means integral therewith.
Claim 5
Dependent Claim
16 words
The container of claim 1 additionally comprising latching means for holding the front closing panels shut.
Claim 6
Dependent Claim
14 words
The container of claim 1 wherein said plastic foam is low density polystyrene foam.
Claim 7
Dependent Claim
161 words
A disposable insulated container adapted for storing and transporting a plurality of pizzas comprising: (a) a rectangular exterior housing of cardboard having a bottom wall, opposite sidewalls and top and rear walls defining an open-front shell, (b) two rectangular front closing panels hinged to the front edges of two opposite walls, said panels each having flanges perpendicular to their surface on their three nonhinged edges, the front edges of the remaining two walls having notches to admit and engage the flanges on the closing panels on their closed position, (c) flat plastic foam inner panels of insulating thickness corresponding in size to and affixed to the inner surfaces of the bottom wall, top and rear walls and front closing panels, and (d) 2 to 8 removable cardboard shelves held in spaced alignment parallel to said bottom wall by a plurality of pairs of about 2 inch high plastic foam spacing means located at the inner surfaces of the opposite side walls.
Claim 8
Dependent Claim
161 words
A disposable insulated container adapted for storing and transporting a plurality of pizzas comprising: (a) a rectangular exterior housing of cardboard having a bottom wall, opposite sidewalls and top and rear walls defining an open-front shell, (b) two rectangular front closing panels hinged to the front edges of two opposite walls, said panels each having flanges perpendicular to their surface on their three nonhinged edges, the front edges of the remaining two walls having notches to admit and engage the flanges on the closing panels on their closed position, (c) flat plastic foam inner panels of insulating thickness corresponding in size to and affixed to the inner surfaces of the bottom wall, top and rear walls and front closing panels, and (d) 2 to 8 removable cardboard shelves held in spaced alignment parallel to said bottom wall by a plurality of pairs of about 2 inch high plastic foam spacing means located at the inner surfaces of the opposite side walls.
Claim 9
Dependent Claim
21 words
The container of claim 6 wherein said closing panels are hinged to the front edges of the top and bottom walls.
References Cited (Backward Citations)
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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) | 1986-03-14 | 1986-09-13 | 1987-03-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1990-03-14 | 1990-09-13 | 1991-03-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1994-03-14 | 1994-09-13 | 1995-03-15 | $7700.00 | Window Closed / Lapsed |