US3638824A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Plastic container
Assignee: DIC Corp
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Filing: 1969-12-24
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Granted: 1972-02-01
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Expires: 1989-12-24
Abstract
Abstract The improvement of a rectangular, bottomed container of plastic opening upwardly and having a plurality of bottle compartments divided by means of a latticelike partition. The underside of each of said divided compartments comprises, with the diagonal thereof as a boundary, a flat triangular zone and a triangular zone which gradually rises to an apex with said diagonal as a base, at least one of said triangular zones which gradually rise to an apex sloping in a direction different from the others.
Inventors
- 👤 Takashi Sekiguchi
- 👤 Shohei Tokiura
- 👤 Sadahide Ogihara
- 👤 Rokuro Yamamoto
- 👤 Akihiro Ikeuchi
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 21:30
CPC Classifications
B; B65; B65D; B65D71/00; B65D71/70; B65D1/00; B65D1/40; B65D2501/00; B65D2501/24; B65D2501/24006; B65D2501/2405; B65D2501/24063; B65D2501/24089; B65D2501/24108
Claims Analysis
Total Claims: 11
Claim 1
Independent Claim
105 words
A plastic rectangular container comprising a bottom and a plurality of sidewalls extending upwardly therefrom, said bottom having a lower surface divided into a plurality of squares, each of said squares being diagonally divided to define first and second triangular zones on either side of a diagonal boundary, said first zones being flat and said second zones being sloped downwardly to an apex from said diagonal boundary, at least one of said second zones being arranged with the direction from said diagonal boundary to said apex oriented differently from the direction from said diagonal boundary to said apex of the others of said second zones.
Claim 2
Dependent Claim
105 words
A plastic rectangular container comprising a bottom and a plurality of sidewalls extending upwardly therefrom, said bottom having a lower surface divided into a plurality of squares, each of said squares being diagonally divided to define first and second triangular zones on either side of a diagonal boundary, said first zones being flat and said second zones being sloped downwardly to an apex from said diagonal boundary, at least one of said second zones being arranged with the direction from said diagonal boundary to said apex oriented differently from the direction from said diagonal boundary to said apex of the others of said second zones.
Claim 3
Dependent Claim
51 words
The rectangular container as recited in claim 1 and further comprising partition means disposed in the area defined by said sidewalls and said bottom to divide said container into a plurality of square compartments aligned with and having the same dimensions as said squares on said lower surface of said bottom.
Claim 4
Dependent Claim
31 words
The rectangular container as recited in claim 2 wherein said bottom has a planar upper support surface, and said first flat zones are disposed in parallel with said upper support surface.
Claim 5
Dependent Claim
15 words
The rectangular container as recited in claim 2 wherein said second zones have continuous surfaces.
Claim 6
Dependent Claim
15 words
The rectangular container as recited in claim 2 wherein said second zones have discontinuous surfaces.
Claim 7
Dependent Claim
20 words
The rectangular container as recited in claim 2 wherein said second zones slope upwardly toward the center of said bottom.
Claim 8
Dependent Claim
29 words
The rectangular container as recited in claim 2 and further comprising a pair of transversely disposed ribs extending downwardly from said lower surface in the configuration of a cruciform.
Claim 9
Dependent Claim
42 words
The rectangular container as recited in claim 2 wherein said lower surface is divided into four rectangular sectors, each of said sectors including a plurality of said squares, and said second zones of said squares in each of said sectors are aligned.
Claim 10
Dependent Claim
101 words
The rectangular container as recited in claim 8 wherein said second zones of said squares in a first of said sectors are aligned in a first direction, said second zones of said squares in a second of said sectors are aligned in a second direction opposite to said first direction, said second zones of said squares in a third of said sectors are aligned in a third direction at an angle to said first and second directions, and said second zones of said squares in a fourth of said sectors are aligned in a fourth directions opposite to said third direction.
Claim 11
Dependent Claim
26 words
The rectangular container as recited in claim 8 wherein said first and second sectors are diagonally disposed and said third and fourth sectors are diagonally disposed.
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) | 1975-01-31 | 1975-08-02 | 1976-02-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-01-31 | 1979-08-02 | 1980-02-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-01-31 | 1983-08-02 | 1984-02-01 | $7700.00 | Window Closed / Lapsed |