US3885730A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Sterilizable package
Assignee: Christenssons Maskiner and Patenter AB
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Filing: 1974-03-07
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Granted: 1975-05-27
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Expires: 1994-03-07
Abstract
Abstract There is disclosed a sterilizable container for foodstuffs or the like and comprising a container bowl open at the top and having a circumferential upper edge which is connectable to a lid to form a tight closed unit. The container bowl comprises a cardboard base which is of a particular configuration and provided with crease lines and which is hermetically sealed between two layers of moisture impervious film; the edges of the film extending for a distance beyond the cardboard base so as to provide a portion to which the sealing lid is joined after the base is formed into its finished shape and the container is filled with suitable contents. Also disclosed is a method for fabricating the container, filling it and sealing it.
Inventors
- 👤 Od W Christensson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 16:24
CPC Classifications
B; B65; B65D; B65D5/00; B65D5/20; B65D5/24; B65D5/241; B65D5/2014; B65D5/2033; B65D5/42; B65D5/56; B65D5/563
Claims Analysis
Total Claims: 10
Claim 1
Independent Claim
108 words
A sterilizable container comprising a container bowl of a liquid-tight material which bowl is open at the top and which is connected along the upper edge thereof to a lid thereby forming a tight, closed unit, characterized in that said container bowl is formed by at least two thin foils which are intimately contacting a base of a stiff material disposed therebetween wherein said base extends a distance less than the distance to said upper edge of said container bowl, and wherein said foils are joined together along said upper edge and said lid is joined in sealed relationship with the non-strengthened upper part of said container bowl.
Claim 2
Dependent Claim
108 words
A sterilizable container comprising a container bowl of a liquid-tight material which bowl is open at the top and which is connected along the upper edge thereof to a lid thereby forming a tight, closed unit, characterized in that said container bowl is formed by at least two thin foils which are intimately contacting a base of a stiff material disposed therebetween wherein said base extends a distance less than the distance to said upper edge of said container bowl, and wherein said foils are joined together along said upper edge and said lid is joined in sealed relationship with the non-strengthened upper part of said container bowl.
Claim 3
Dependent Claim
37 words
Container according to claim 1 wherin said base is hermetically enclosed between said two foils and the non-strengthened upper part of said container bowl is composed only by said foils welded together thereby forming a connected unit.
Claim 4
Dependent Claim
22 words
Container according to claim 2 wherein said base is laminated together with said foils thereby forming an integral unit with said foils.
Claim 5
Dependent Claim
22 words
Container according to claim 1 wherein said base is a basket which is placed within said container bowl which comprises said foils.
Claim 6
Dependent Claim
22 words
Container according to claim 1 wherein said base is a basket which is placed outside said container bowl which comprises said foils.
Claim 7
Dependent Claim
45 words
Container according to claim 1 wherein said container bowl is formed by a flat uninterrupted blank including a bottom and container sides which are integral with the said bottom and with corner panels and corner fold pieces to provide a container bowl without any joints.
Claim 8
Dependent Claim
35 words
Container according to claim 2 wherein the inner foil of said two foils is a laminate comprising an outer aluminum foil and an inner foil of a plastic material which is resistant to sterilizing temperatures.
Claim 9
Dependent Claim
51 words
Container according to claim 1 wherein said lid comprises a lid seal foil in the form of a laminate comprising an inner plastic foil and an outer aluminum foil, said lid seal foil being connected to and welded against the inside of said non-strengthened upper edge part of said container bowl.
Claim 10
Dependent Claim
24 words
Container according to claim 1 wherein said non-strengthened upper edge part of said container bowl is enclosed in a frame of a stiff material.
References Cited (Backward Citations)
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US3172593A
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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) | 1978-05-26 | 1978-11-25 | 1979-05-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1982-05-26 | 1982-11-25 | 1983-05-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1986-05-26 | 1986-11-25 | 1987-05-27 | $7700.00 | Window Closed / Lapsed |