Patent US4591060A successfully refreshed from Google Patents.
US4591060A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Container of polyethylene terephthalate or saturated polyester resin
Assignee: Yoshino Kogyosho Co Ltd
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Filing: 1984-03-23
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Granted: 1986-05-27
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Expires: 2004-03-23
Abstract
Abstract A hollow, blow-molded container of a biaxially oriented saturated polyester resin in which the upper part of the neck section is formed thicker than the intermediate section, and the upper half part of the upper part is formed thicker than the lower half part of the upper part. Thus, a cap can be exactly mounted on the neck section of this container, and the quantity of the material of the neck section can be reduced.
Inventors
- 👤 Takami Tsukada
- 👤 Akiho Ota
- 👤 Hiroaki Sugiura
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 20:04
CPC Classifications
B; B29; B29C; B29C71/00; B29C71/02; B65; B65D; B65D1/00; B65D1/02; B65D1/0223; B65D1/023; B29K; B29K2995/00; B29K2995/0037; B29K2995/0041
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
153 words
A hollow blow-molded container of polyethylene terephthalate resin comprising: (a) a biaxially oriented and uncrystallized body section; and (b) a neck section comprising an upper part and an intermediate part, said upper part comprising an upper half part and a lower half part, said intermediate part being adjacent to an upper end of said body section, said upper half part being larger in diameter and of a greater wall thickness than said lower half part, a stepped part being formed between said upper half part and said lower half part, said lower half part being larger in diameter and of greater wall thickness than said intermediate part, a stepped part being formed between said lower half part and said intermediate part, said intermediate part being adjacent to and of greater wall thickness than said body section, said upper half part and said lower half part being crystallized, and said intermediate part being uncrystallized.
Claim 2
Dependent Claim
153 words
A hollow blow-molded container of polyethylene terephthalate resin comprising: (a) a biaxially oriented and uncrystallized body section; and (b) a neck section comprising an upper part and an intermediate part, said upper part comprising an upper half part and a lower half part, said intermediate part being adjacent to an upper end of said body section, said upper half part being larger in diameter and of a greater wall thickness than said lower half part, a stepped part being formed between said upper half part and said lower half part, said lower half part being larger in diameter and of greater wall thickness than said intermediate part, a stepped part being formed between said lower half part and said intermediate part, said intermediate part being adjacent to and of greater wall thickness than said body section, said upper half part and said lower half part being crystallized, and said intermediate part being uncrystallized.
Claim 3
Dependent Claim
34 words
A hollow blow-molded container of polyethylene terephthalate resin according to claim 1 wherein said body section and said neck section comprise a colored pigment for increasing the resistance of said container to outside light.
Claim 4
Dependent Claim
19 words
A hollow blow-molded container of polyethylene terephthalate resin according to claim 2 wherein said body section is substantially opaque.
Claim 5
Dependent Claim
18 words
A hollow blow-molded container of polyethylene terephthalate resin according to claim 2 wherein said body section is transparent.
Claim 6
Dependent Claim
15 words
The hollow blow-molded container of claim 1 wherein said container body section is thermally set.
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) | 1989-05-26 | 1989-11-25 | 1990-05-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1993-05-26 | 1993-11-25 | 1994-05-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1997-05-26 | 1997-11-25 | 1998-05-27 | $7700.00 | Window Closed / Lapsed |