Patent US3926324A successfully refreshed from Google Patents.
US3926324A
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US
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Plastic container for pressurized liquid
Assignee: Continental Can Co Inc
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Filing: 1974-05-02
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Granted: 1975-12-16
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Expires: 1994-05-02
Abstract
Abstract A container made from a thermoplastic material having a cylindrical sidewall and bottom skirt, with an interior hemispherically shaped end portion, and apparatus for making same.
Inventors
- 👤 Fred J Zavasnik
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 08:07
CPC Classifications
B; B65; B65D; B65D1/00; B65D1/02; B65D1/0223; B65D1/0261; B65D1/0276; B29; B29C; B29C49/00; B29C49/02; B29C49/06; B29C49/071; B29C49/42; B29C49/48; B29C49/54; B29C49/541; B29C2049/023; B29C2049/542; B29C2049/548; B29C2949/00; B29C2949/07; B29C2949/073; B29C2949/0733; B29C2949/076; B29C2949/0761; B29C2949/0768; B29C2949/077; B29C2949/0772; B29C2949/0776; B29C2949/078; B29C2949/079; B29C2949/20; B29C2949/22; B29C2949/24; B29C2949/26; B29C2949/28
Claims Analysis
Total Claims: 7
Claim 1
Independent Claim
78 words
A hollow article comprising a unitary thermoplastic material free of bonds of a weld type defining a line of juncture and defining: a. a hollow cylindrical member having a reduced shoulder portion at one end and terminating in a neck portion defining a mouth adapted to receive a closure, and an internally concave projecting closure at the other end of said cylindrical member, said projecting closure being entirely recessed within a cylindrical depending portion of said cylindrical member.
Claim 2
Dependent Claim
78 words
A hollow article comprising a unitary thermoplastic material free of bonds of a weld type defining a line of juncture and defining: a. a hollow cylindrical member having a reduced shoulder portion at one end and terminating in a neck portion defining a mouth adapted to receive a closure, and an internally concave projecting closure at the other end of said cylindrical member, said projecting closure being entirely recessed within a cylindrical depending portion of said cylindrical member.
Claim 3
Dependent Claim
15 words
The hollow article of claim 1 wherein said thermoplastic material is an injection molded product.
Claim 4
Dependent Claim
35 words
The hollow article of claim 1 wherein said other end of said cylindrical member has a terminal free edge disposed in axially spaced relation to the connection between said concave closure and said cylindrical member.
Claim 5
Dependent Claim
32 words
The hollow article of claim 1 wherein a portion of said cylindrical member is of an injection molded shaping and the remainder of said cylindrical member is of a blow molded shaping.
Claim 6
Dependent Claim
33 words
The hollow article of claim 1 wherein said cylindrical member in part defines a container body and in part defines a skirt, and wherein said container body is of a blow molded shaping.
Claim 7
Dependent Claim
55 words
The hollow article of claim 1 wherein said cylindrical member in part defines a container body and in part defines a skirt, and wherein said container body is of a blow molded shaping, said skirt having a free terminal end portion, and at least said free terminal end portion is of an injection molded shaping.
References Cited (Backward Citations)
US2982440A
Cited
US3726429A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1978-12-15 | 1979-06-16 | 1979-12-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1982-12-15 | 1983-06-16 | 1983-12-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1986-12-15 | 1987-06-16 | 1987-12-16 | $7700.00 | Window Closed / Lapsed |