US3918630A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Tray with reinforced corner construction and blank therefor
Assignee: Georgia Pacific Consumer Products LP
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Filing: 1975-02-05
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Granted: 1975-11-11
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Expires: 1995-02-05
Abstract
Abstract A rectangular paperboard tray having a hollow, triangular pillar corner construction and a unitary paperboard blank therefor. The interior corner panels of the hollow triangular pillar corners are hingedly connected at opposite sides to side panels and inner corner flaps. The side and end panels of the tray are secured together by inner and outer corner flaps.
Inventors
- 👤 George L Meyers
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 15:07
CPC Classifications
B; B65; B65D; B65D5/00; B65D5/001; B65D5/0015; B65D5/002
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
162 words
A substantially rectangular unitary paperboard carton blank for forming a tray having a hollow triangular pillar corner construction, said blank comprising: a. a bottom panel, b. two side panels hingedly connected to said bottom panel along a first pair of parallel score lines, c. inner and outer corner flaps formed by corner slits extending diagonally inwardly from substantially the corners of said blank to said first pair of score lines and terminating in inwardly extending short end portion slits coincident with said first pair of score lines, d. interior corner panels hingedly connected at opposite sides to said inner corner flaps and said side panels along fold lines extending substantially from the edge of the blank to said end portion slits, and e. two end panels hingedly connected to said bottom panel along a second pair of parallel score lines extending perpendicular to and between said end portion slits and to said outer corner flaps along said first pair of score lines.
Claim 2
Dependent Claim
162 words
A substantially rectangular unitary paperboard carton blank for forming a tray having a hollow triangular pillar corner construction, said blank comprising: a. a bottom panel, b. two side panels hingedly connected to said bottom panel along a first pair of parallel score lines, c. inner and outer corner flaps formed by corner slits extending diagonally inwardly from substantially the corners of said blank to said first pair of score lines and terminating in inwardly extending short end portion slits coincident with said first pair of score lines, d. interior corner panels hingedly connected at opposite sides to said inner corner flaps and said side panels along fold lines extending substantially from the edge of the blank to said end portion slits, and e. two end panels hingedly connected to said bottom panel along a second pair of parallel score lines extending perpendicular to and between said end portion slits and to said outer corner flaps along said first pair of score lines.
Claim 3
Dependent Claim
73 words
A substantially rectangular paperboard carton blank as specified in claim 1 wherein said outer corner flaps have end tabs formed therein, said side panels have internal slits formed therein for receipt and retention of the end tabs of said outer corner flaps, said inner corner flaps have corner tabs formed therein, and said end panels have pairs of edge slits for receipt and retention of the corner tabs of said inner corner flaps.
Claim 4
Dependent Claim
118 words
A substantially rectangular paperboard tray having a hollow, triangular corner pillar construction, said tray comprising: a. a bottom panel, b. two side panels hingedly connected to said bottom panel, c. inner and outer corner flaps, d. interior corner panels hingedly connected at opposite sides to said inner corner flaps and said side panels, said interior corner panels extending across the corners of the tray in abutment with the bottom panel thereof, e. two end panels hingedly connected to said bottom panel and to said outer corner flaps, and f. said inner corner flaps being disposed inside of and attached to said end panels and said outer corner flaps being disposed outside of and attached to said side panels.
Claim 5
Dependent Claim
118 words
A substantially rectangular paperboard tray having a hollow, triangular corner pillar construction, said tray comprising: a. a bottom panel, b. two side panels hingedly connected to said bottom panel, c. inner and outer corner flaps, d. interior corner panels hingedly connected at opposite sides to said inner corner flaps and said side panels, said interior corner panels extending across the corners of the tray in abutment with the bottom panel thereof, e. two end panels hingedly connected to said bottom panel and to said outer corner flaps, and f. said inner corner flaps being disposed inside of and attached to said end panels and said outer corner flaps being disposed outside of and attached to said side panels.
Claim 6
Dependent Claim
67 words
A substantially rectangular paperboard tray as specified in claim 3 wherein said inner corner flaps are attached to said end panels by corner tabs on said inner corner flaps inserted and retained in pairs of edge slits formed in said end panels, and said outer corner flaps are attached to said side panels by end tabs inserted and retained in internal slits formed in said side 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) | 1978-11-10 | 1979-05-12 | 1979-11-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1982-11-10 | 1983-05-12 | 1983-11-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1986-11-10 | 1987-05-12 | 1987-11-11 | $7700.00 | Window Closed / Lapsed |