Patent US3741427A successfully refreshed from Google Patents.
US3741427A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Double boiler food tray
Assignee: Continental Can Co Inc
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Filing: 1971-02-08
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Granted: 1973-06-26
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Expires: 1991-02-08
Abstract
Abstract A double boiler food tray, or the like, wherein a cover is fastened to an inner tray such that the fastening means also provides a vent for the escape of steam created during heating.
Inventors
- 👤 D Doyle
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 08:07
CPC Classifications
A; A47; A47J; A47J36/00; A47J36/02; A47J36/022; B; B65; B65D; B65D81/00; B65D81/34; B65D81/3438; B65D2205/00; B65D2581/00; B65D2581/34; B65D2581/3401; B65D2581/3429; B65D2581/3433
Claims Analysis
Total Claims: 9
Claim 1
Independent Claim
130 words
A container comprising a tray including a bottom member and an upstanding side wall member having a generally radially outwardly extending marginal flange formed thereon, a cover member having a portion thereof contacting said marginal flange, fastening means connecting said cover member to said marginal flange, said fastening means comprising an opening formed in said marginal flange and an eyelet extending through said opening, an outer tray having a bottom wall member and an upstanding wall member, said marginal flange resting directly on said upstanding wall member of said outer tray for supporting said first mentioned tray in spaced relation from said bottom wall member for forming a chamber, said eyelet being located between said side wall member and said upstanding wall member for providing vent means for said chamber.
Claim 2
Dependent Claim
130 words
A container comprising a tray including a bottom member and an upstanding side wall member having a generally radially outwardly extending marginal flange formed thereon, a cover member having a portion thereof contacting said marginal flange, fastening means connecting said cover member to said marginal flange, said fastening means comprising an opening formed in said marginal flange and an eyelet extending through said opening, an outer tray having a bottom wall member and an upstanding wall member, said marginal flange resting directly on said upstanding wall member of said outer tray for supporting said first mentioned tray in spaced relation from said bottom wall member for forming a chamber, said eyelet being located between said side wall member and said upstanding wall member for providing vent means for said chamber.
Claim 3
Dependent Claim
20 words
A container as defined in claim 1 wherein said eyelet is integral with and formed from material of said cover.
Claim 4
Dependent Claim
26 words
A container as defined in claim 1 wherein said eyelet is crimped about material of said marginal flange turned back upon itself for forming said opening.
Claim 5
Dependent Claim
95 words
A double boiler comprising an outer tray having a bottom wall member and an upstanding wall member, an inner tray including a marginal flange resting directly on said upstanding wall member for supporting said inner tray in spaced relation from said bottom wall member for forming a chamber between the trays, a cover resting on said marginal flange, and vent means formed in said cover and said marginal flange and connecting said cover to said marginal flange, said vent means comprising an opening formed in said marginal flange and an eyelet extending through said opening.
Claim 6
Dependent Claim
95 words
A double boiler comprising an outer tray having a bottom wall member and an upstanding wall member, an inner tray including a marginal flange resting directly on said upstanding wall member for supporting said inner tray in spaced relation from said bottom wall member for forming a chamber between the trays, a cover resting on said marginal flange, and vent means formed in said cover and said marginal flange and connecting said cover to said marginal flange, said vent means comprising an opening formed in said marginal flange and an eyelet extending through said opening.
Claim 7
Dependent Claim
33 words
A double boiler as defined in claim 4 including an outer cover having a central portion overlying and spaced from the first mentioned cover, and a vent opening formed in said outer cover.
Claim 8
Dependent Claim
22 words
A double boiler as defined in claim 4 wherein said eyelet is integral with and formed from the material of said cover.
Claim 9
Dependent Claim
27 words
A double boiler as defined in claim 4 wherein said eyelet is crimped about material of said marginal flange turned back upon itself for forming said opening.
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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) | 1976-06-25 | 1976-12-25 | 1977-06-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-06-25 | 1980-12-25 | 1981-06-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-06-25 | 1984-12-25 | 1985-06-26 | $7700.00 | Window Closed / Lapsed |