Patent US3583623A successfully refreshed from Google Patents.
US3583623A
Expired / Lapsed
US
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Integral, thin-wall tray
Assignee: Individual
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Filing: 1969-09-16
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Granted: 1971-06-08
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Expires: 1989-09-16
Abstract
Abstract A thin-wall plastic tray comprising a rectangular bottom wall and outwardly extending integral sidewalls defining a shallow compartment, said sidewall edges defining a flared, peripheral skirt of arcuate cross section, said bottom wall including a rectangular protuberance extending into said compartment defining a recessed border, said protuberance having a concave surface, a plurality of upraised ribs in said recessed border, diagonally extending corrugated braces disposed in said protuberance and upraised corner gussets.
Inventors
- 👤 Jerold Julius Golner
- 👤 John D Alroy
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 12:50
CPC Classifications
B; B65; B65D; B65D1/00; B65D1/34
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
118 words
An integral, thin-wall plastic tray for comestibles or the like comprising a generally rectangular bottom wall and upwardly extending sidewalls at each edge thereof, said sidewalls defining a relatively shallow tray compartment adapted to receive said comestibles said sidewall edges extending outwardly and downwardly to define a flared, peripheral skirt of arcuate cross section, said bottom wall including a generally rectangular protuberance extending into said compartment defining a recessed border on the periphery adjacent said sidewalls, said protuberance having a concave surface, a plurality of upraised ribs in said recessed border, said rectangular protuberance including diagonally extending braces upraised and intersecting at the center from said concave surface, the recessed border of said tray including upraised corner gussets.
Claim 2
Dependent Claim
118 words
An integral, thin-wall plastic tray for comestibles or the like comprising a generally rectangular bottom wall and upwardly extending sidewalls at each edge thereof, said sidewalls defining a relatively shallow tray compartment adapted to receive said comestibles said sidewall edges extending outwardly and downwardly to define a flared, peripheral skirt of arcuate cross section, said bottom wall including a generally rectangular protuberance extending into said compartment defining a recessed border on the periphery adjacent said sidewalls, said protuberance having a concave surface, a plurality of upraised ribs in said recessed border, said rectangular protuberance including diagonally extending braces upraised and intersecting at the center from said concave surface, the recessed border of said tray including upraised corner gussets.
Claim 3
Dependent Claim
40 words
A tray according to claim 1 wherein said gussets terminate in upraised ribs for additional reinforcement, said border corners being provided with staggered upraised bottoms to facilitate separation between trays in nested relation to promote easy removal from the stack.
Claim 4
Dependent Claim
39 words
A tray according to claim 1 wherein said protuberance includes planar border, said concave surface being formed with said border, said intersecting diagonal braces defining merging triangles, the base of each triangle being the planar border of said protuberance.
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) | 1974-06-07 | 1974-12-07 | 1975-06-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-06-07 | 1978-12-07 | 1979-06-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-06-07 | 1982-12-07 | 1983-06-08 | $7700.00 | Window Closed / Lapsed |