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US5025982A Expired / Lapsed US ⏱️ 0.0 years remaining

Multi-piece flat top container

Assignee: Elopak Systems AG
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Filing: 1990-10-29
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Granted: 1991-06-25
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Expires: 2010-10-29
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Abstract

Abstract A multi-piece flat top container includes a thermoplastic coated paperboard body 10 of a predetermined cross-sectional configuration, a thermoplastic adapter ring 14 having an annular recess 16 formed therein for mounting over the top edge of the body 10 and fusion sealed thereto, and a tamper-evident flat membrane 20 of any suitable material sealed adjacent its peripheral edge to the top edge of the adapter ring 14. An optional over-cap 26 may be mounted over the membrane 20 and adapter ring 14 without being sealed thereto. <IMAGE>

Inventors

  • 👤 Robert E. Lisiecki

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-11-04 13:08
CPC Classifications
B; B65; B65D; B65D51/00; B65D51/18; B65D51/20; B65D15/00; B65D15/02; B65D15/04; B65D15/08; B65D2251/00; B65D2251/0003; B65D2251/0006; B65D2251/0018; B65D2251/0068; B65D2251/0093

Claims Analysis

Total Claims: 7
Claim 1
Independent Claim 111 words
A multi-piece container comprising a thermoplastic coated paperboard body of a predetermined cross-sectional configuration, a thermoplastic adapter ring of a predetermined height and having an annular recess formed therein adapted to mount over and sit upon the top edge portion of said body and having an annular seal formed therebetween at an intermediate height thereof, and a substantially flat membrane formed of any suitable material sealed adjacent its peripheral edge to the top edge of said adapter ring, wherein said thermoplastic coated paperboard body includes a side seam which is one of a corner seam or a center seam, and said recess of said adapter ring is formed to accommodate same.
Claim 2
Dependent Claim 111 words
A multi-piece container comprising a thermoplastic coated paperboard body of a predetermined cross-sectional configuration, a thermoplastic adapter ring of a predetermined height and having an annular recess formed therein adapted to mount over and sit upon the top edge portion of said body and having an annular seal formed therebetween at an intermediate height thereof, and a substantially flat membrane formed of any suitable material sealed adjacent its peripheral edge to the top edge of said adapter ring, wherein said thermoplastic coated paperboard body includes a side seam which is one of a corner seam or a center seam, and said recess of said adapter ring is formed to accommodate same.
Claim 3
Dependent Claim 27 words
The multi-piece container described in claim 1, wherein said annular seal is effected around both the interior and exterior of said top edge portion of said body.
Claim 4
Dependent Claim 21 words
The multi-piece container described in claim 1, wherein said flat membrane is formed of one of a transparent film or paper.
Claim 5
Dependent Claim 33 words
The multi-piece container described in claim 1, wherein said cross-sectional configuration of said body is one of a square, rectangle, or combination of square at the bottom and round at the top configuration.
Claim 6
Dependent Claim 25 words
The multi-piece container described in claim 1, and an optional overcap adapted to mount over said membrane and said adapter ring without being sealed thereto.
Claim 7
Dependent Claim 29 words
The multi-piece container described in claim 5, and an inturned free edge formed on said overcap for retention cooperation with a mid-portion of the height of said annular ring.

References Cited (Backward Citations)

US3659774A Cited
US4101047A Cited
US4305535A Cited
US4328905A Cited
US4444355A Cited
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US4442971A Cited
US4560063A Cited
US4856674A Cited

USPTO Annuity & Maintenance Windows

Annuity Stage Window Opens Payment Deadline Surcharge Period Until Estimated Fee Status
3.5 Years (Year 4) 1994-06-24 1994-12-24 1995-06-25 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1998-06-24 1998-12-24 1999-06-25 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 2002-06-24 2002-12-24 2003-06-25 $7700.00 Window Closed / Lapsed

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