Patent US3708103A successfully refreshed from Google Patents.
US3708103A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Corner construction for a corrugated box
Assignee: Individual
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Filing: 1971-08-31
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Granted: 1973-01-02
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Expires: 1991-08-31
Abstract
Abstract An improved corner construction for a corrugated paper box in which each of the corner flaps of the corrugated box comprise three score lines therein and a foldable interlocking tab attached thereto for insertion through slots in each of two end panels, the corner flaps with the foldable interlocking tabs being attached to each of two side panels; the corner flaps with foldable interlocking tabs being so constructed as to slide through the slots in end panels into a recess located in the main panel of the corrugated box thus enabling one section of the paper box to telescope easily into the other section of the paper box.
Inventors
- 👤 H Evans
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 13:22
CPC Classifications
B; B65; B65D; B65D5/00; B65D5/20; B65D5/30; B65D5/301; B65D5/302
Claims Analysis
Total Claims: 7
Claim 1
Independent Claim
297 words
In a blank for a corrugated box having a main panel with edges for hingedly attaching, oppositely opposed first and second end panels each having a plurality of slots and oppositely opposed first and second side panels, a new and improved corner construction formed by extending a. the said first and second side panels into a plurality of end flaps, 1. each of the said end flaps having a first and second outer edge having a first score line separating each of the said end flaps from the said first and second side panels respectively, b. a second score line in each of the said plurality of end flaps, positioned at approximately a 45* angle with the said first score line aligned with a point in each of the corners of the said main panel and extending to the said first outer edge of each of the said end flaps, c. each of the said first outer edges of the said end flaps having a tab hingedly joined thereto, with a third score line separating the said tabs from the said end flaps, d. an opening in each of the said end flaps, 1. the said opening formed by a perimetrical line extending from the said point in each of the said corners of the said main panel to the beginning of the said second score line said beginning located approximately half the distance from the said point in the said corner of the said main panel to the said first outer edge of the said end flaps, then in an arc to a second outer edge of each of the said end flaps, 2. the said arc having a radius taken from the said point in each of the said corners of the said main panel.
Claim 2
Dependent Claim
297 words
In a blank for a corrugated box having a main panel with edges for hingedly attaching, oppositely opposed first and second end panels each having a plurality of slots and oppositely opposed first and second side panels, a new and improved corner construction formed by extending a. the said first and second side panels into a plurality of end flaps, 1. each of the said end flaps having a first and second outer edge having a first score line separating each of the said end flaps from the said first and second side panels respectively, b. a second score line in each of the said plurality of end flaps, positioned at approximately a 45* angle with the said first score line aligned with a point in each of the corners of the said main panel and extending to the said first outer edge of each of the said end flaps, c. each of the said first outer edges of the said end flaps having a tab hingedly joined thereto, with a third score line separating the said tabs from the said end flaps, d. an opening in each of the said end flaps, 1. the said opening formed by a perimetrical line extending from the said point in each of the said corners of the said main panel to the beginning of the said second score line said beginning located approximately half the distance from the said point in the said corner of the said main panel to the said first outer edge of the said end flaps, then in an arc to a second outer edge of each of the said end flaps, 2. the said arc having a radius taken from the said point in each of the said corners of the said main panel.
Claim 3
Dependent Claim
22 words
the said arc having a radius taken from the said point in each of the said corners of the said main panel.
Claim 4
Dependent Claim
22 words
the said arc having a radius taken from the said point in each of the said corners of the said main panel.
Claim 5
Dependent Claim
66 words
A corrugated box formed from an integral blank as claimed in claim 1, where the said plurality of end flaps hingedly connected to the said first and second side panel along the first said score line are foldably connected to the first and second end panels by inserting the said end flaps into the said plurality of slots on the outside of the said end panels.
Claim 6
Dependent Claim
48 words
The corrugated box as claimed in claim 2 where the said slots in the said end panels are positioned on a center line which is approximately on a 45* angle originating at the said point in the said corners of said main panel of the said corrugated box.
Claim 7
Dependent Claim
60 words
The corrugated box as claimed in claim 2 wherein the said main panel has a plurality of recesses, the said recesses being positioned in the said main panel so as to provide a nesting place for the said end flaps when the said end flaps are inserted through the said slots in the said end panels of the said box.
References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1976-01-02 | 1976-07-03 | 1977-01-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-01-02 | 1980-07-03 | 1981-01-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-01-02 | 1984-07-03 | 1985-01-02 | $7700.00 | Window Closed / Lapsed |