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US3894655A Expired / Lapsed US ⏱️ 0.0 years remaining

Plastic container

Assignee: Graham Packaging Plastic Products Inc
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Filing: 1974-06-06
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Granted: 1975-07-15
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Expires: 1994-06-06
📄 Original PDF 🌐 Google Patents

Abstract

Abstract An integrally formed, one-piece, generally rectangular, plastic container particularly adapted for holding medicines. The container includes a generally rectangular bottom section which is connected to a rectangular top section by means of an integrally formed, flexible, plastic hinge at the rear of the two sections. In the closed position, the top section overlies the bottom section and latch means lock the two sections together. The bottom section has a planar bottom wall, two opposed, upturned sidewalls, an upturned front wall, and an upturned back wall, all of which are integrally formed and connected to each other. The top section has a planar top wall, two downturned sidewalls, and a downturned front wall all of which are integrally formed and connected to each other, and a downturned back wall integrally formed and connected to said top wall and to the rearmost edges of the downturned sidewalls, the latter connection being made by means of fracturable plastic webs. The closed container requires that equal pressure be applied to the rear corners thereof in order to disengage the latch means. The container provides a substantially childproof safety closure for tableted medicines such as aspirin, laxatives, cold tablets, prescription drugs, etc. This container also provides a container which will indicate to the consumer whether or not the container has been tampered with by opening.

Inventors

  • 👤 Harley H Mattheis
  • 👤 Edward J Potter

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-11-04 11:37
CPC Classifications
B; B65; B65D; B65D43/00; B65D43/14; B65D43/16; B65D43/162; B65D2251/00; B65D2251/10; B65D2251/1016; B65D2251/105

Claims Analysis

Total Claims: 10
Claim 1
Independent Claim 167 words
In an integrally formed, one-piece plastic container, the combination comprising: a. a generally rectangular bottom section having a planar bottom wall, two opposed, upturned sidewalls, an upturned back wall, and an upturned front wall, all of which are integrally formed and connected to each other; b. a generally rectangular top section having a planar top wall, two opposed, downturned sidewalls, and a downturned front wall, all of which are integrally formed and connected to each other, and a downturned back wall integrally formed and connected to said top wall and to the rearmost edges of said downturned sidewalls, said connection of said downturned back wall and said downturned side walls being made by a fracturable web at each point of connection; c. integrally formed hinge means connecting said back wall of said top section to said back wall of said bottom section; and d. said top section adapted to overlie said bottom section and to be frictionally engaged therewith when said container is in the closed position.
Claim 2
Dependent Claim 167 words
In an integrally formed, one-piece plastic container, the combination comprising: a. a generally rectangular bottom section having a planar bottom wall, two opposed, upturned sidewalls, an upturned back wall, and an upturned front wall, all of which are integrally formed and connected to each other; b. a generally rectangular top section having a planar top wall, two opposed, downturned sidewalls, and a downturned front wall, all of which are integrally formed and connected to each other, and a downturned back wall integrally formed and connected to said top wall and to the rearmost edges of said downturned sidewalls, said connection of said downturned back wall and said downturned side walls being made by a fracturable web at each point of connection; c. integrally formed hinge means connecting said back wall of said top section to said back wall of said bottom section; and d. said top section adapted to overlie said bottom section and to be frictionally engaged therewith when said container is in the closed position.
Claim 3
Dependent Claim 22 words
In the container of claim 1 wherein both of said back walls are less than one-half the height of the adjacent sidewalls.
Claim 4
Dependent Claim 29 words
In the container of claim 1 wherein said hinge means includes a web of plastic material having a thickness of less than one-half the thickness of said back walls.
Claim 5
Dependent Claim 32 words
In the container of claim 1 wherein said fracturable webs can be fractured by the application of pressure exerted on the rear corners of the container by the fingers of an adult.
Claim 6
Dependent Claim 21 words
In the container of claim 1 wherein said front walls and said sidewalls of both sections are all of equal height.
Claim 7
Dependent Claim 63 words
In the container of claim 1 wherein said top and bottom sections are frictionally engaged in the closed position by integrally formed, spaced apart projections provided adjacent the upper edge of the outer wall of said upturned front wall, which projections are engaged by integrally formed, spaced apart projections provided adjacent the upper edge of the inner wall of said downturned front wall.
Claim 8
Dependent Claim 12 words
The container of claim 4 wherein the container is made of polypropylene.
Claim 9
Dependent Claim 21 words
In the container of claim 7 wherein said front walls and said sidewalls of both sections are all of equal height.
Claim 10
Dependent Claim 63 words
In the container of claim 8 wherein said top and bottom sections are frictionally engaged in the closed position by integrally formed, spaced apart projections provided adjacent the upper edge of the outer wall of said upturned front wall, which projections are engaged by integrally formed, spaced apart projections provided adjacent the upper edge of the innEr wall of said downturned front wall.

References Cited (Backward Citations)

US2842178A Cited
US3327887A Cited
US3348724A Cited
US3381850A Cited
US3489313A Cited
US3851789A Cited

USPTO Annuity & Maintenance Windows

Annuity Stage Window Opens Payment Deadline Surcharge Period Until Estimated Fee Status
3.5 Years (Year 4) 1978-07-14 1979-01-13 1979-07-15 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1982-07-14 1983-01-13 1983-07-15 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 1986-07-14 1987-01-13 1987-07-15 $7700.00 Window Closed / Lapsed

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