US3984027A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Food service package
Assignee: OI Glass Inc
•
Filing: 1975-12-15
•
Granted: 1976-10-05
•
Expires: 1995-12-15
Abstract
Abstract An improved two piece food package. The package includes lid and dish members. The lid has formed in its perimeter three slots, two on one side and a single slot on the opposite side. The dish member has three locking tabs designed to engage the slots in the lid to thereby hold the two members together as a unit package. Under the single tab is formed a locking lug. The locking lug extends outward far enough to interfere with a portion of the lid when the lid and dish are assembled. This interference causes the dish sidewall to bow, creating a lock of the dish sidewall into corners of the lid.
Inventors
- 👤 G. Kenneth Smith
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 14:23
CPC Classifications
B; B65; B65D; B65D43/00; B65D43/02; B65D43/0202; B65D43/0204; B65D43/0212; B65D1/00; B65D1/22; B65D2543/00; B65D2543/00009; B65D2543/00444; B65D2543/00481; B65D2543/0049; B65D2543/00527; B65D2543/00537; B65D2543/00574; B65D2543/00592; B65D2543/00601; B65D2543/00611; B65D2543/00648; B65D2543/00675; B65D2543/00694; B65D2543/00712; B65D2543/00722; B65D2543/00777; B65D2543/00787; B65D2543/00805
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
279 words
A two piece food service package made of a relatively thin, flexible material which comprises, in combination: A. a lid member, said lid member including; a top panel; a depending perimetric skirt attached to said top panel; an outwardly extending perimetric flange attached to the free end of said skirt; a first slot formed in said skirt; and second and third slots, formed in that portion of said skirt opposite said first slot; and B. a dish member, said dish member including; a bottom panel; an upstanding perimetric wall attached to said bottom panel; an outwardly extending perimetric flange attached to the free end of said perimetric wall, said dish flange having a perimetric configuration that will fit within the perimeter of said top panel, whereby said top panel will rest on said dish flange when said dish and lid are assembled; a first outwardly extending locking tab attached to the free edge of said dish flange and positioned to engage said first slot when ssaid lid is placed on said dish; second and third outwardly extending locking tabs attached to the free edge of said dish flange and positioned to respectively engage said second and third slots when said lid is placed on said dish; and a pressure lock lug positioned under said first locking tab and extending outwardly from said upstanding wall, the upper portion of said pressure lock lug merging with the lower portion of said first locking tab, said pressure lock lug extending outwardly further than said dish flange, whereby said pressure lock lug will bend said dish wall and dish flange to engage corners of said lid when said lid and dish are assembled.
Claim 2
Dependent Claim
279 words
A two piece food service package made of a relatively thin, flexible material which comprises, in combination: A. a lid member, said lid member including; a top panel; a depending perimetric skirt attached to said top panel; an outwardly extending perimetric flange attached to the free end of said skirt; a first slot formed in said skirt; and second and third slots, formed in that portion of said skirt opposite said first slot; and B. a dish member, said dish member including; a bottom panel; an upstanding perimetric wall attached to said bottom panel; an outwardly extending perimetric flange attached to the free end of said perimetric wall, said dish flange having a perimetric configuration that will fit within the perimeter of said top panel, whereby said top panel will rest on said dish flange when said dish and lid are assembled; a first outwardly extending locking tab attached to the free edge of said dish flange and positioned to engage said first slot when ssaid lid is placed on said dish; second and third outwardly extending locking tabs attached to the free edge of said dish flange and positioned to respectively engage said second and third slots when said lid is placed on said dish; and a pressure lock lug positioned under said first locking tab and extending outwardly from said upstanding wall, the upper portion of said pressure lock lug merging with the lower portion of said first locking tab, said pressure lock lug extending outwardly further than said dish flange, whereby said pressure lock lug will bend said dish wall and dish flange to engage corners of said lid when said lid and dish are assembled.
Claim 3
Dependent Claim
23 words
The package of claim 1 wherein said lid member and said dish member are both made from a thermally insulating, foamed, thermoplastic material.
Claim 4
Dependent Claim
25 words
The package of claim 1 wherein said first slot is formed in said skirt in a substantially equidistant position from adjacent corners of said skirt.
Claim 5
Dependent Claim
37 words
The package of claim 2 wherein said lid member further includes a re-enforcement rib, connected to a free edge of said lid flange and extending outwardly therefrom, said rib being at least co-extensive with said first slot.
Claim 6
Dependent Claim
59 words
The package of claim 1 wherein said lid member further includes a pair of re-enforcement ribs, connected to a free edge of said lid flange and extending outwardly therefrom, one of said pair of ribs being at least co-extensive with said second slot and the other of said pair of ribs being at least co-extensive with said third slot.
References Cited (Backward Citations)
US3902540A
Cited
US3935962A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1979-10-05 | 1980-04-05 | 1980-10-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1983-10-05 | 1984-04-05 | 1984-10-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1987-10-05 | 1988-04-05 | 1988-10-05 | $7700.00 | Window Closed / Lapsed |