Patent US3554435A successfully refreshed from Google Patents.
US3554435A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Pouch with reinforced edge
Assignee: BRH Corp
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Filing: 1969-01-16
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Granted: 1971-01-12
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Expires: 1989-01-16
Abstract
Abstract A pouch of heat sealable packaging film having a string impregnated or coated with a heat sealable composition arranged between opposed pouch walls along an edge of the pouch, wherein the string is heat sealed to the walls to thereby reinforce said edge of the pouch.
Inventors
- 👤 Harvey F Martinez
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 22:39
CPC Classifications
B; B65; B65D; B65D33/00; B65D33/02
Claims Analysis
Total Claims: 5
Claim 1
Independent Claim
116 words
In a pouch of the type having opposed pouch walls of flexible heat sealable packaging film joined together along at least some of their edge portions to define a container enclosure, and having an aperture extending through the pouch walls near one edge portion of the pouch, the improvement wherein said edge portion of the pouch is reinforced by (1) a string positioned between the pouch walls and extending thereacross to lie closely adjacent to said one edge portion between said one edge portion and said aperture, (2) said string including a heat sealable composition and being heat sealed to contacting portions of the opposed pouch walls to thereby reinforce said one edge of the pouch.
Claim 2
Dependent Claim
116 words
In a pouch of the type having opposed pouch walls of flexible heat sealable packaging film joined together along at least some of their edge portions to define a container enclosure, and having an aperture extending through the pouch walls near one edge portion of the pouch, the improvement wherein said edge portion of the pouch is reinforced by (1) a string positioned between the pouch walls and extending thereacross to lie closely adjacent to said one edge portion between said one edge portion and said aperture, (2) said string including a heat sealable composition and being heat sealed to contacting portions of the opposed pouch walls to thereby reinforce said one edge of the pouch.
Claim 3
Dependent Claim
66 words
A pouch according to claim 1, wherein the pouch is formed of a single sheet of packaging film folded over along a fold line to define a pair of opposed pouch walls, the pouch walls are heat sealed along their side edge portions at an angle to the fold line, and said string is positioned along the fold line and heat sealed to the pouch walls.
Claim 4
Dependent Claim
21 words
A pouch according to claim 1 wherein the pouch walls are heat sealed together along their contacting portions alongside the string.
Claim 5
Dependent Claim
21 words
A pouch according to claim 2 wherein the pouch walls are heat sealed together along their contacting portions alongside the string.
References Cited (Backward Citations)
US2971874A
Cited
US3426959A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1974-01-11 | 1974-07-13 | 1975-01-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-01-11 | 1978-07-13 | 1979-01-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-01-11 | 1982-07-13 | 1983-01-12 | $7700.00 | Window Closed / Lapsed |