US3910484A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Carton with exterior ledge
Assignee: International Paper Co
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Filing: 1974-02-25
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Granted: 1975-10-07
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Expires: 1994-02-25
Abstract
Abstract A single piece, self-locking carton having excellent corner strength and durable integral exterior ledges is described. The carton has bottom, side and end wall panels. Ledge panels foldably attached to the top edge of the end wall panels overlie the outer face of the end wall panels. The ledge panels are shorter than the end wall panels and form a protruding ledge at the top of each end of the carton. The thickness and strength of the ledges is varied by additional panels located between the ledge panels and end wall panels. To provide corner strength, there are two sets of corner connector panels, one set foldably attached to the end wall panels, the other set to the ledge panels. The corner connector panels abut the inner face of the side wall panels. Locking panels foldably attached to the side wall panels overlie the inner face of the side wall panels and sandwich the corner connector panels between them and the side wall panels to maintain the structural integrity of the carton.
Inventors
- 👤 Roger M Wozniacki
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 11:02
CPC Classifications
B; B65; B65D; B65D5/00; B65D5/20; B65D5/2038; B65D5/2047; B65D5/22; B65D5/42; B65D5/44; B65D5/46; B65D5/46072
Claims Analysis
Total Claims: 17
Claim 1
Independent Claim
272 words
A carton comprising: a bottom panel with foldably attached side and end wall panels, said bottom panel containing peripheral apertures; outer ledge panels of a smaller height dimension than the end wall panels foldably attached to the top edge of the end wall panels and overlying the outer face of the end wall panels; inner ledge panels of a smaller height dimension than the end wall panels attached to that edge of the outer ledge panels opposite that which attaches the outer ledge panels to the end wall panels, the inner ledge panels located between the outer ledge panels and the end wall panels, the outer and inner ledge panels cooperating to form at the top of each end of the carton a ledge on the carton exterior; first corner connector panels foldably attached to opposite side edges of the end wall panels and overlying the inner face of the side wall panels; second corner connector panels foldably attached to opposite side edges of the outer ledge panels and overlying the inner face of the side wall panels, the second corner connector panels located between the first corner connector panels and the side wall panels and having tabs which fit in the apertures of the bottom panel; locking panels foldably attached to the top edge of the side wall panels and overlying the inner face of the side wall panels, the first and second corner connector panels located between the side wall panels and the locking panels, the locking panels having tabs at the bottom edge which fit in the apertures of the bottom panels to hold the locking panels in position.
Claim 2
Dependent Claim
272 words
A carton comprising: a bottom panel with foldably attached side and end wall panels, said bottom panel containing peripheral apertures; outer ledge panels of a smaller height dimension than the end wall panels foldably attached to the top edge of the end wall panels and overlying the outer face of the end wall panels; inner ledge panels of a smaller height dimension than the end wall panels attached to that edge of the outer ledge panels opposite that which attaches the outer ledge panels to the end wall panels, the inner ledge panels located between the outer ledge panels and the end wall panels, the outer and inner ledge panels cooperating to form at the top of each end of the carton a ledge on the carton exterior; first corner connector panels foldably attached to opposite side edges of the end wall panels and overlying the inner face of the side wall panels; second corner connector panels foldably attached to opposite side edges of the outer ledge panels and overlying the inner face of the side wall panels, the second corner connector panels located between the first corner connector panels and the side wall panels and having tabs which fit in the apertures of the bottom panel; locking panels foldably attached to the top edge of the side wall panels and overlying the inner face of the side wall panels, the first and second corner connector panels located between the side wall panels and the locking panels, the locking panels having tabs at the bottom edge which fit in the apertures of the bottom panels to hold the locking panels in position.
Claim 3
Dependent Claim
60 words
The carton of claim 1 further including an additional panel of a smaller height dimension than the end wall panels foldably attached to that edge of the inner ledge panels which attaches the inner ledge panels to the outer ledge panels, said panel located between the inner and outer ledge panels to further thicken the ledges on the carton exterior.
Claim 4
Dependent Claim
177 words
A single unit blank comprising: a bottom panel with foldably attached side and end wall panels, said bottom panel having peripheral apertures; outer ledge panels of a smaller height dimension than the end wall panels foldably attached to the top edge of the end wall panels by an intermediate shoulder panel; inner ledge panels of a smaller height dimension than the end wall panels foldably attached by an intermediate shoulder panel to that edge of the outer ledge panels opposite that which attaches the outer ledge panels to the end wall panels; first corner connector panels foldably attached to opposite side edges of the end wall panels; second corner connector panels foldably attached to opposite side edges of the outer ledge panels; and locking panels foldably attached to the top edge of the side wall panels by an intermediate shoulder panel, the locking panels having tabs along the edge opposite that which connects the locking panels to the side wall panels which are adapted to fit in the apertures of the bottom panel in the assembled blank.
Claim 5
Dependent Claim
177 words
A single unit blank comprising: a bottom panel with foldably attached side and end wall panels, said bottom panel having peripheral apertures; outer ledge panels of a smaller height dimension than the end wall panels foldably attached to the top edge of the end wall panels by an intermediate shoulder panel; inner ledge panels of a smaller height dimension than the end wall panels foldably attached by an intermediate shoulder panel to that edge of the outer ledge panels opposite that which attaches the outer ledge panels to the end wall panels; first corner connector panels foldably attached to opposite side edges of the end wall panels; second corner connector panels foldably attached to opposite side edges of the outer ledge panels; and locking panels foldably attached to the top edge of the side wall panels by an intermediate shoulder panel, the locking panels having tabs along the edge opposite that which connects the locking panels to the side wall panels which are adapted to fit in the apertures of the bottom panel in the assembled blank.
Claim 6
Dependent Claim
275 words
A carton comprising: a bottom panel with foldably attached side and end wall panels, said bottom panel having peripheral apertures; outer ledge panels of a smaller height dimension than the end wall panels foldably attached to the top edge of the end wall panels by an intermediate shoulder panel and overlying the outer face of the end wall panels; inner ledge panels of a smaller height dimension than the end wall panels attached by an intermediate shoulder panel to that edge of the outer ledge panels opposite that which attaches the outer ledge panels to the end wall panels, the inner ledge panels located between the outer ledge panels and the end wall panels, the outer and inner ledge panels cooperating to form at the top of each end of the carton a ledge on the carton exterior; first corner connector panels foldably attached to opposite side edges of the end wall panels and overlying the inner face of the side wall panels; second corner connector panels foldably attached to opposite side edges of the outer ledge panels and overlying the inner face of the side wall panels, the second corner connector panels located between the first corner connector panels and the side wall panels; locking panels foldably attached to the top edge of the side wall panels by an intermediate shoulder panel and overlying the inner face of the side wall panels, the first and second corner connector panels located between the side wall panels and the locking panels, the locking panels having tabs at the bottom edge which fit in the apertures of the bottom panels to hold the locking panels in position.
Claim 7
Dependent Claim
275 words
A carton comprising: a bottom panel with foldably attached side and end wall panels, said bottom panel having peripheral apertures; outer ledge panels of a smaller height dimension than the end wall panels foldably attached to the top edge of the end wall panels by an intermediate shoulder panel and overlying the outer face of the end wall panels; inner ledge panels of a smaller height dimension than the end wall panels attached by an intermediate shoulder panel to that edge of the outer ledge panels opposite that which attaches the outer ledge panels to the end wall panels, the inner ledge panels located between the outer ledge panels and the end wall panels, the outer and inner ledge panels cooperating to form at the top of each end of the carton a ledge on the carton exterior; first corner connector panels foldably attached to opposite side edges of the end wall panels and overlying the inner face of the side wall panels; second corner connector panels foldably attached to opposite side edges of the outer ledge panels and overlying the inner face of the side wall panels, the second corner connector panels located between the first corner connector panels and the side wall panels; locking panels foldably attached to the top edge of the side wall panels by an intermediate shoulder panel and overlying the inner face of the side wall panels, the first and second corner connector panels located between the side wall panels and the locking panels, the locking panels having tabs at the bottom edge which fit in the apertures of the bottom panels to hold the locking panels in position.
Claim 8
Dependent Claim
149 words
A carton comprising: a bottom panel with foldably attached side and end wall panels; a ledge panel foldably attached to the end wall panels by an intermediate shoulder panel and overlying the outer face of the end wall panels; first corner connector panels foldably attached to opposite edges of the end wall panels and overlying the inner face of the side wall panels; second corner connector panels foldably attached to opposite edges of the ledge panel and overlying the inner face of the side wall panels; locking panels foldably attached to the side wall panels by an intermediate shoulder panel and overlying the inner face of the side wall panels, the corner connector panels located between the side wall panels and the locking panels, said intermediate shoulder panels forming a broadened, flat peripheral rim around the top of the carton; and means maintaining the locking panel in said position.
Claim 9
Dependent Claim
149 words
A carton comprising: a bottom panel with foldably attached side and end wall panels; a ledge panel foldably attached to the end wall panels by an intermediate shoulder panel and overlying the outer face of the end wall panels; first corner connector panels foldably attached to opposite edges of the end wall panels and overlying the inner face of the side wall panels; second corner connector panels foldably attached to opposite edges of the ledge panel and overlying the inner face of the side wall panels; locking panels foldably attached to the side wall panels by an intermediate shoulder panel and overlying the inner face of the side wall panels, the corner connector panels located between the side wall panels and the locking panels, said intermediate shoulder panels forming a broadened, flat peripheral rim around the top of the carton; and means maintaining the locking panel in said position.
Claim 10
Dependent Claim
145 words
A carton comprising: a bottom panel with foldably attached side and end wall panels, said bottom panel containing peripheral apertures; a ledge panel foldably attached to the end wall panels and overlying the outer face of the end wall panels; first corner connector panels foldably attached to opposite edges of the end wall panels and overlying the inner face of the side wall panels; second corner connector panels foldably attached to opposite edges of the ledge panel and overlying the inner face of the side wall panels, said second corner connector panels having tabs which fit in the apertures of the bottom panel; locking panels foldably attached to the side wall panels and overlying the inner face of the side wall panels, the corner connector panels located between the side wall panels and the locking panels; and means maintaining the locking panel in said position.
Claim 11
Dependent Claim
145 words
A carton comprising: a bottom panel with foldably attached side and end wall panels, said bottom panel containing peripheral apertures; a ledge panel foldably attached to the end wall panels and overlying the outer face of the end wall panels; first corner connector panels foldably attached to opposite edges of the end wall panels and overlying the inner face of the side wall panels; second corner connector panels foldably attached to opposite edges of the ledge panel and overlying the inner face of the side wall panels, said second corner connector panels having tabs which fit in the apertures of the bottom panel; locking panels foldably attached to the side wall panels and overlying the inner face of the side wall panels, the corner connector panels located between the side wall panels and the locking panels; and means maintaining the locking panel in said position.
Claim 12
Dependent Claim
181 words
A single unit blank comprising: a bottom panel with foldably attached side and end wall panels, said bottom panel containing peripheral apertures; outer ledge panels of a smaller height dimension than the end wall panels foldably attached to the top edge of the end wall panels; inner ledge panels of a smaller height dimension than the end wall panels foldably attached to that edge of the outer ledge panels opposite that which attaches the outer ledge panels to the end wall panels; first corner connector panels foldably attached to opposite side edges of the end wall panels; second corner connector panels foldably attached to opposite side edges of the outer ledge panels and having tabs which are adapted to fit in the apertures of the bottom panel in the assembled blank; and locking panels foldably attached to the top edge of the side wall panels, the locking panels having tabs along the edge opposite that which connects the locking panels to the side wall panels which are adapted to fit in the apertures of the bottom panel in the assembled blank.
Claim 13
Dependent Claim
181 words
A single unit blank comprising: a bottom panel with foldably attached side and end wall panels, said bottom panel containing peripheral apertures; outer ledge panels of a smaller height dimension than the end wall panels foldably attached to the top edge of the end wall panels; inner ledge panels of a smaller height dimension than the end wall panels foldably attached to that edge of the outer ledge panels opposite that which attaches the outer ledge panels to the end wall panels; first corner connector panels foldably attached to opposite side edges of the end wall panels; second corner connector panels foldably attached to opposite side edges of the outer ledge panels and having tabs which are adapted to fit in the apertures of the bottom panel in the assembled blank; and locking panels foldably attached to the top edge of the side wall panels, the locking panels having tabs along the edge opposite that which connects the locking panels to the side wall panels which are adapted to fit in the apertures of the bottom panel in the assembled blank.
Claim 14
Dependent Claim
97 words
A single unit blank comprising: a bottom panel with attached side and end wall panels; a ledge panel attached to the end wall panels by an intermediate shoulder panel; first corner connector panels attached to the end wall panels; second corner connector panels attached to the ledge panels; and locking panels attached to the side wall panels by an interMediate shoulder panel which, in the erected blank, cooperates with the intermediate shoulder panel which attaches the ledge panels to the end wall panels to form a broadened, flat peripheral rim around the top of the erected blank.
Claim 15
Dependent Claim
97 words
A single unit blank comprising: a bottom panel with attached side and end wall panels; a ledge panel attached to the end wall panels by an intermediate shoulder panel; first corner connector panels attached to the end wall panels; second corner connector panels attached to the ledge panels; and locking panels attached to the side wall panels by an interMediate shoulder panel which, in the erected blank, cooperates with the intermediate shoulder panel which attaches the ledge panels to the end wall panels to form a broadened, flat peripheral rim around the top of the erected blank.
Claim 16
Dependent Claim
77 words
A single unit blank comprising: a bottom panel with attached side and end wall panels, said bottom panel containing peripheral apertures; a ledge panel attached to the end wall panels; first corner connector panels attached to the end wall panels; second corner connector panels attached to the ledge panels and having tabs which are adapted to fit in the apertures of the bottom panel in the assembled blank; and locking panels attached to the side wall panels.
Claim 17
Dependent Claim
77 words
A single unit blank comprising: a bottom panel with attached side and end wall panels, said bottom panel containing peripheral apertures; a ledge panel attached to the end wall panels; first corner connector panels attached to the end wall panels; second corner connector panels attached to the ledge panels and having tabs which are adapted to fit in the apertures of the bottom panel in the assembled blank; and locking panels attached to the side wall panels.
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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) | 1978-10-06 | 1979-04-07 | 1979-10-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1982-10-06 | 1983-04-07 | 1983-10-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1986-10-06 | 1987-04-07 | 1987-10-07 | $7700.00 | Window Closed / Lapsed |