Patent US3739976A successfully refreshed from Google Patents.
US3739976A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Insulated plastic bucket
Assignee: SWEETHEART PROPERTIES Inc
•
Filing: 1971-11-26
•
Granted: 1973-06-19
•
Expires: 1991-11-26
Abstract
Abstract A container having a wrapped side wall of foam plastic sheet material with the side margins overlapped and welded together, and a separately formed bottom having a central portion generally perpendicular to the container axis and with an annular skirt extending away from the plane of the central portion and sealed to the lower margin of the side wall. A lid made of the same material fits over the upper margin of the container.
Inventors
- 👤 Daniel G Mac
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 19:11
CPC Classifications
B; B65; B65D; B65D81/00; B65D81/38; B65D81/3865; B65D81/3867; B65D21/00; B65D21/02; B65D21/0209; B65D21/0217; B65D21/0219; B65D21/0233; B65D43/00; B65D43/02; B65D43/0202; B65D43/0204; B65D43/0212; B65D47/00; B65D47/36; B65D2205/00; B65D2543/00; B65D2543/00009; B65D2543/00018; B65D2543/00027; B65D2543/00064; B65D2543/00074; B65D2543/00092; B65D2543/00259; B65D2543/00296; B65D2543/00444; B65D2543/00481; B65D2543/0049; B65D2543/00527; B65D2543/00537; B65D2543/00592; B65D2543/00601; B65D2543/00611; B65D2543/00657; B65D2543/00675; B65D2543/00685; B65D2543/00712; B65D2543/00722; B65D2543/0074; B65D2543/00787; B65D2543/00796; B65D2543/00824; B65D2543/00833; B65D2543/00851
Claims Analysis
Total Claims: 5
Claim 1
Independent Claim
93 words
A lid for a container formed from foam plastic material and having a sidewall defining the mouth of said container at its upper end, said sidewall being turned over at the upper edge to enhance the lateral stiffness of said container, comprising: said lid being formed from a sheet of foam plastic material and having a down turned skirt formed about the periphery of said lid; and a bead formed on the inner edge of said skirt and being dimensioned to engage, in a snap fit, said turned over margin of said sidewall.
Claim 2
Dependent Claim
93 words
A lid for a container formed from foam plastic material and having a sidewall defining the mouth of said container at its upper end, said sidewall being turned over at the upper edge to enhance the lateral stiffness of said container, comprising: said lid being formed from a sheet of foam plastic material and having a down turned skirt formed about the periphery of said lid; and a bead formed on the inner edge of said skirt and being dimensioned to engage, in a snap fit, said turned over margin of said sidewall.
Claim 3
Dependent Claim
25 words
A lid as defined in claim 1 wherein said bead on said lid is adapted to engage the lower edge of said turned over margin.
Claim 4
Dependent Claim
57 words
A lid as defined in claim 1 further comprising: means forming a plurality of offset sections in the central region of said lid; and means forming a cut in at least one of said offset portions to enable the foam material defined by said cut to be folded downwardly into the container for venting the container interior.
Claim 5
Dependent Claim
27 words
A lid as defined in claim 3 wherein said cuts are substantially U-shaped configuration and are dimensioned to allow one''s finger to be inserted through said openings.
References Cited (Backward Citations)
US3484015A
Cited
US3521788A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1976-06-18 | 1976-12-18 | 1977-06-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-06-18 | 1980-12-18 | 1981-06-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-06-18 | 1984-12-18 | 1985-06-19 | $7700.00 | Window Closed / Lapsed |