US3561669A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Composite leakproof carton
Assignee: Riegel Paper Corp
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Filing: 1968-09-30
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Granted: 1971-02-09
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Expires: 1988-09-30
Abstract
Abstract The disclosure relates to a composite leakproof carton construction having a parallelepiped outer shell, a full length tubular liner tightly fitted within the outer shell, and sealing membranes adhered to outfolded carton end flaps of the shell and gasketed between the liner end edges and said flaps when the flaps are infolded. The carton is easily openable by a shell encircling tear strip, the removal of which forms a telescopically reclosable cover or cap member.
Inventors
- 👤 Norval W Postweiler
- 👤 George Vrana
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 15:28
CPC Classifications
B; B65; B65D; B65D5/00; B65D5/42; B65D5/54; B65D5/5445
Claims Analysis
Total Claims: 8
Claim 1
Independent Claim
193 words
A composite package structure including: a. an outer shell member comprising; 1. first, second, third and fourth contiguous shell sidewalls, 2. a shell glue flap of predetermined width articulated to said first wall and connecting the same to said fourth wall, 3. shell closing end flaps articulated to the opposite ends of said sidewalls; b. an inner tubular liner member disposed snugly within said shell member and comprising comprising; 1. first, second, third and fourth liner sidewalls substantially identical in size and shape to said shell sidewalls, 2. a liner glue flap of predetermined width articulated to said first shell sidewall and connecting the same to said fourth shell sidewall; c. flexible sheet members adhered to inner surfaces of said end flaps and sealing off the ends of said shell and liner; 1. portions of said sheet members being compressed between end edges of said liner and said end flaps; d. the combined widths of said shell glue flaps and said liner glue flap being substantially equal to the width of said fourth shell wall; and e. said glue flaps being arranged in a mating nested relation with their edges in substantial abutment.
Claim 2
Dependent Claim
193 words
A composite package structure including: a. an outer shell member comprising; 1. first, second, third and fourth contiguous shell sidewalls, 2. a shell glue flap of predetermined width articulated to said first wall and connecting the same to said fourth wall, 3. shell closing end flaps articulated to the opposite ends of said sidewalls; b. an inner tubular liner member disposed snugly within said shell member and comprising comprising; 1. first, second, third and fourth liner sidewalls substantially identical in size and shape to said shell sidewalls, 2. a liner glue flap of predetermined width articulated to said first shell sidewall and connecting the same to said fourth shell sidewall; c. flexible sheet members adhered to inner surfaces of said end flaps and sealing off the ends of said shell and liner; 1. portions of said sheet members being compressed between end edges of said liner and said end flaps; d. the combined widths of said shell glue flaps and said liner glue flap being substantially equal to the width of said fourth shell wall; and e. said glue flaps being arranged in a mating nested relation with their edges in substantial abutment.
Claim 3
Dependent Claim
20 words
a shell glue flap of predetermined width articulated to said first wall and connecting the same to said fourth wall,
Claim 4
Dependent Claim
20 words
a shell glue flap of predetermined width articulated to said first wall and connecting the same to said fourth wall,
Claim 5
Dependent Claim
44 words
a liner glue flap of predetermined width articulated to said first shell sidewall and connecting the same to said fourth shell sidewall; c. flexible sheet members adhered to inner surfaces of said end flaps and sealing off the ends of said shell and liner;
Claim 6
Dependent Claim
44 words
a liner glue flap of predetermined width articulated to said first shell sidewall and connecting the same to said fourth shell sidewall; c. flexible sheet members adhered to inner surfaces of said end flaps and sealing off the ends of said shell and liner;
Claim 7
Dependent Claim
27 words
shell closing end flaps articulated to the opposite ends of said sidewalls; b. an inner tubular liner member disposed snugly within said shell member and comprising comprising;
Claim 8
Dependent Claim
27 words
shell closing end flaps articulated to the opposite ends of said sidewalls; b. an inner tubular liner member disposed snugly within said shell member and comprising comprising;
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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) | 1974-02-08 | 1974-08-10 | 1975-02-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-02-08 | 1978-08-10 | 1979-02-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-02-08 | 1982-08-10 | 1983-02-09 | $7700.00 | Window Closed / Lapsed |