US3700018A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Semirigid container
Assignee: Individual
•
Filing: 1971-01-06
•
Granted: 1972-10-24
•
Expires: 1991-01-06
Abstract
Abstract Completely heat-welded, semirigid tight container for foodstuff. The container comprises a pre-shaped bottom of thermoplastic material which can be heat-welded, as well as a top containing portion, at least partly formed of heat weldable material consistent with that the bottom, formed of a preferably tubular element which at one of its ends is heat-welded to the bottom and provided with a top opening suitable to be closed by transverse heat-welding upon completion of product stuffing.
Inventors
- 👤 Luigi Goglio
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 01:36
CPC Classifications
B; B65; B65D; B65D33/00; B65D33/02; B65D75/00; B65D75/008; B29; B29C; B29C45/00; B29C45/14; B29C45/1418; B29C45/14778; B29C45/14811; B29K; B29K2715/00; B29K2715/006; B29K2995/00; B29K2995/0037; B29K2995/0065; B29K2995/0067
Claims Analysis
Total Claims: 12
Claim 1
Independent Claim
109 words
A semirigid container comprising: a premolded bottom of plastic material having a contoured side circumscribing a transverse wall, said side having at least one flat outward extension, and a stop shoulder transverse to said contoured side; and a containing element of flexible material having at least one surface of thermoplastic material and at least one longitudinal weld joining together juxtaposed portions of said surface of thermoplastic material, said containing element being welded to said contoured side of said bottom with said extension being interposed between said portions of said surface of thermoplastic material and adjacent said longitudinal weld, whereby said premolded bottom closes an end of said containing element.
Claim 2
Dependent Claim
109 words
A semirigid container comprising: a premolded bottom of plastic material having a contoured side circumscribing a transverse wall, said side having at least one flat outward extension, and a stop shoulder transverse to said contoured side; and a containing element of flexible material having at least one surface of thermoplastic material and at least one longitudinal weld joining together juxtaposed portions of said surface of thermoplastic material, said containing element being welded to said contoured side of said bottom with said extension being interposed between said portions of said surface of thermoplastic material and adjacent said longitudinal weld, whereby said premolded bottom closes an end of said containing element.
Claim 3
Dependent Claim
33 words
The container as claimed in claim 1, wherein said containing element comprises a single folded sheet of said flexible material, and said longitudinal weld joins together the free ends of said folded sheet.
Claim 4
Dependent Claim
55 words
The container as claimed in claim 1, wherein: said at least one outward extension comprises a pair of outward extensions; said containing element comprises a pair of sheets of said flexible material; and said at least one longitudinal weld comprises a pair of longitudinal welds joiNing together two opposing sides of said pair of sheets.
Claim 5
Dependent Claim
15 words
The container as claimed in claim 1, wherein said contoured side has a circular configuration.
Claim 6
Dependent Claim
15 words
The container as claimed in claim 1, wherein said contoured side has an elliptical configuration.
Claim 7
Dependent Claim
19 words
The container as claimed in claim 1, wherein said contoured side has a configuration formed of interconnected arcuate lines.
Claim 8
Dependent Claim
26 words
The container as claimed in claim 1, wherein said premolded bottom includes bearing projections, whereby it is maintained at a raised position from a supporting surface.
Claim 9
Dependent Claim
28 words
The container as claimed in claim 1, wherein at least one surface of said transverse wall is covered with a sheet of material making the transverse wall impermeable.
Claim 10
Dependent Claim
28 words
The container as claimed in claim 8, wherein said impermeable sheet comprises at least one aluminum sheet adhesively joined to at least one surface of said transverse wall.
Claim 11
Dependent Claim
21 words
The container as claimed in claim 8, wherein said at least one surface of said transverse wall is an inner surface.
Claim 12
Dependent Claim
26 words
The container as claimed in claim 8, wherein said transverse wall, said contoured side, and said stop shoulder are integrally formed portions of said premolded bottom.
References Cited (Backward Citations)
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Cited
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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) | 1975-10-24 | 1976-04-24 | 1976-10-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-10-24 | 1980-04-24 | 1980-10-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-10-24 | 1984-04-24 | 1984-10-24 | $7700.00 | Window Closed / Lapsed |