Patent US3448519A successfully refreshed from Google Patents.
US3744702A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Multi-ply container
Assignee: Inland Container Corp
•
Filing: 1972-01-26
•
Granted: 1973-07-10
•
Expires: 1992-01-26
Abstract
Abstract A multi-ply container of fiberboard material made from three separate four-panel blanks adhesively attached to one another. At three of the four corners there are hinge lines from only two of said blanks, whereas at the remaining corner there is one hinge line from each blank. However, the hinge line at this corner of either the inner or center blank has a central blind slot extending for the major portion of its length, and the hinge line of the other blank has upper and lower short slots at the ends thereof.
Inventors
- 👤 D Ellison
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 13:28
CPC Classifications
B; B65; B65D; B65D5/00; B65D5/32
Claims Analysis
Total Claims: 8
Claim 1
Independent Claim
153 words
A multi-ply container of fiberboard material, which container comprises three separate blanks each having four panels connected along vertical hinge lines which blanks are adhesively attached to one another to provide an inner ply, a center ply and an outer ply, said blanks being arranged so that said hinge lines from only two of said blanks are located at each of three of the four corners whereas at the remaining corner there is located one of said hinge lines from each of said three blanks, and the hinge line located at said remaining corner of one of said inner and center blanks having a central blind slot that extends for the major portion of the length of said hinge line and the hinge line of the other of said inner and center blanks having upper and lower short slots that extend inWard respectively from the upper and lower ends of said hinge line.
Claim 2
Dependent Claim
153 words
A multi-ply container of fiberboard material, which container comprises three separate blanks each having four panels connected along vertical hinge lines which blanks are adhesively attached to one another to provide an inner ply, a center ply and an outer ply, said blanks being arranged so that said hinge lines from only two of said blanks are located at each of three of the four corners whereas at the remaining corner there is located one of said hinge lines from each of said three blanks, and the hinge line located at said remaining corner of one of said inner and center blanks having a central blind slot that extends for the major portion of the length of said hinge line and the hinge line of the other of said inner and center blanks having upper and lower short slots that extend inWard respectively from the upper and lower ends of said hinge line.
Claim 3
Dependent Claim
30 words
A container in accordance with claim 1 wherein said central blind slot extends for a distance between about 60 and about 95 percent of the length of said hinge line.
Claim 4
Dependent Claim
30 words
A container in accordance with claim 2 wherein said short slots each extend for a distance between about 2 and about 20 percent of the length of said hinge line.
Claim 5
Dependent Claim
46 words
A container in accordance with claim 1 wherein said outer blank is provided with a tab that forms a manufacturer''s joint on the exterior surface of said container and wherein the corner of said container where said joint is located is diagonally opposite said remaining corner.
Claim 6
Dependent Claim
36 words
A container in accordance with claim 4 wherein said inner blank contains a central blind slot extending for a major portion of the length of the hinge line located at the corner having said manufacturer''s joint.
Claim 7
Dependent Claim
22 words
A container in accordance with claim 5 wherein said central blind slot at said remaining corner is located on said center blank.
Claim 8
Dependent Claim
45 words
A container in accordance with claim 6 wherein the construction of said inner and center blanks is similar, each having a central blind slot along one of said hinge lines and each having upper and lower short slots along another of said hinge lines thereof.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1976-07-09 | 1977-01-08 | 1977-07-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-07-09 | 1981-01-08 | 1981-07-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-07-09 | 1985-01-08 | 1985-07-10 | $7700.00 | Window Closed / Lapsed |