Patent US3797730A successfully refreshed from Google Patents.
US3797730A
Expired / Lapsed
US
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Two part box
Assignee: ZACH L VERPACKUNGEN DT
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Filing: 1971-05-18
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Granted: 1974-03-19
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Expires: 1991-05-18
Abstract
Abstract This invention relates to a two part box, particularly for holding cheese, comprising a base formed of a synthetic plastics material and having a bottom and a resilient peripheral sidewall, and closure means to close said base, said closure means comprising a lid formed of cardboard or like material and having a cover sheet with a stretchable wall extending therefrom, whereby the lid can be retained firmly on said base by interengagement between the wall of said lid and the sidewall of said base.
Inventors
- 👤 E Zach
- 👤 G Zach
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 19:19
CPC Classifications
B; B65; B65D; B65D43/00; B65D43/02; B65D43/0202; B65D43/0204; B65D43/0212; B65D85/00; B65D85/70; B65D85/72; B65D85/76; B65D2543/00; B65D2543/00009; B65D2543/00018; B65D2543/00064; B65D2543/00074; B65D2543/00092; B65D2543/00231; B65D2543/0024; B65D2543/00259; B65D2543/00268; B65D2543/00342; B65D2543/00351; B65D2543/00444; B65D2543/00481; B65D2543/0049; B65D2543/00527; B65D2543/00537; B65D2543/00592; B65D2543/00601; B65D2543/00611; B65D2543/0062; B65D2543/00675; B65D2543/00694; B65D2543/00712; B65D2543/00722; B65D2543/0075; B65D2543/00787; B65D2543/00796
Claims Analysis
Total Claims: 7
Claim 1
Independent Claim
150 words
A two-part box, particularly for holding cheese, comprising a base formed of a synthetic plastics material and having a bottom and a resilient peripheral side wall, and closure means to close said base, said closure means comprising a lid formed of cardboard, wherein said lid comprises a cover sheet, a side wall extending from the cover sheet to overlap with and secure the side wall of the lid to the side wall of said base, and an inner peripheral laterally-extending bead disposed to be deformed by the side wall of the base when the side wall overlap, and wherein the side wall of the base is of double walled construction comprised of two webs defining therebetween a space, said side wall having slots extending therethrough which are transverse to the bottom of said base, the webs of the double-walled side wall being connected together along the sides of the slots.
Claim 2
Dependent Claim
150 words
A two-part box, particularly for holding cheese, comprising a base formed of a synthetic plastics material and having a bottom and a resilient peripheral side wall, and closure means to close said base, said closure means comprising a lid formed of cardboard, wherein said lid comprises a cover sheet, a side wall extending from the cover sheet to overlap with and secure the side wall of the lid to the side wall of said base, and an inner peripheral laterally-extending bead disposed to be deformed by the side wall of the base when the side wall overlap, and wherein the side wall of the base is of double walled construction comprised of two webs defining therebetween a space, said side wall having slots extending therethrough which are transverse to the bottom of said base, the webs of the double-walled side wall being connected together along the sides of the slots.
Claim 3
Dependent Claim
45 words
The two-part box of claim 1, wherein the side wall of said base has a peripheral groove on its outer surface to receive said peripheral bead, interengagement of said bead in said groove increasing the security of the closure between said lid and said base.
Claim 4
Dependent Claim
29 words
The two-part box of claim 1 wherein the side wall of the base, in the closed position of the box, is open in a direction away from the lid.
Claim 5
Dependent Claim
30 words
The two-part box of claim 1 in which the outer dimensions of the space extending peripherally round the base are substantially the same as the outer dimensions of the lid.
Claim 6
Dependent Claim
16 words
The two-part box of claim 1 in which the bottom of the base has ribs therein.
Claim 7
Dependent Claim
21 words
The two-part box of claim 1 wherein the lid is coated on its inside with a film of synthetic plastics material.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1977-03-18 | 1977-09-17 | 1978-03-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-03-18 | 1981-09-17 | 1982-03-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-03-18 | 1985-09-17 | 1986-03-19 | $7700.00 | Window Closed / Lapsed |