US3559800A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Packaging material
Assignee: Primerica Inc
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Filing: 1968-08-13
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Granted: 1971-02-02
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Expires: 1988-08-13
Abstract
Abstract A multiply pouch is described wherein the plies are bonded substantially only in the marginal areas and having a line of weakness in the inner ply lying within the ply-bonded area at the pouch mouth but outside the area which is heat sealed to close the mouth of the pouch.
Inventors
- 👤 John Parkman Butler
- 👤 Harry Meekma
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 05:49
CPC Classifications
B; B65; B65D; B65D75/00; B65D75/52; B65D75/58; B65D75/5805; B65D31/00; B65D31/02; B65D75/40; B65D75/44
Claims Analysis
Total Claims: 9
Claim 1
Independent Claim
83 words
A package, comprising: a commodity contained within a multiply pouch of flexible sheet materials sealed at the mouth thereof, said pouch having a tear resistant, inner ply adhered to a tearable, outer ply substantially only in the marginal portions of the pouch and having lines of weakness, for ease of opening, formed only in the inner ply and located within the area of ply adhesion at the mouth of the pouch but not covered by the sealed area which closes the pouch mouth.
Claim 2
Dependent Claim
83 words
A package, comprising: a commodity contained within a multiply pouch of flexible sheet materials sealed at the mouth thereof, said pouch having a tear resistant, inner ply adhered to a tearable, outer ply substantially only in the marginal portions of the pouch and having lines of weakness, for ease of opening, formed only in the inner ply and located within the area of ply adhesion at the mouth of the pouch but not covered by the sealed area which closes the pouch mouth.
Claim 3
Dependent Claim
17 words
A package as claimed in claim 1 wherein the outer ply sheet material is a metal foil.
Claim 4
Dependent Claim
56 words
An open-mouthed multiply pouch of flexible sheet materials having a tear resistant, inner ply adhered to a tearable, outer ply substantially only in the marginal portions of the pouch and having a line of weakness formed only in the inner ply and lying within the area of ply adhesion adjacent the open mouth of the pouch.
Claim 5
Dependent Claim
56 words
An open-mouthed multiply pouch of flexible sheet materials having a tear resistant, inner ply adhered to a tearable, outer ply substantially only in the marginal portions of the pouch and having a line of weakness formed only in the inner ply and lying within the area of ply adhesion adjacent the open mouth of the pouch.
Claim 6
Dependent Claim
16 words
A pouch as claimed in claim 3 wherein the outer ply sheet material is metal foil.
Claim 7
Dependent Claim
131 words
A multiply pouch of flexible sheet materials containing a product sealed therein, said pouch comprising a tear resistant, inner ply of heat sealable, moisture-resistant plastic film bonded to a tearable outer ply substantially only in the marginal portions of the pouch, the area of interply adhesion at the mouth of the pouch including a line of weakness only in said inner ply of each main pouch wall parallel to the mouth edge of the pouch, said weakness lines being spaced equally from said edge a distance slightly less than the width of the marginal area of interply adhesion, a product within the pouch and a sealed area closing the mouth of said pouch, said seal being restricted to the area between said weakness lines and the adjacent edge of said pouch.
Claim 8
Dependent Claim
131 words
A multiply pouch of flexible sheet materials containing a product sealed therein, said pouch comprising a tear resistant, inner ply of heat sealable, moisture-resistant plastic film bonded to a tearable outer ply substantially only in the marginal portions of the pouch, the area of interply adhesion at the mouth of the pouch including a line of weakness only in said inner ply of each main pouch wall parallel to the mouth edge of the pouch, said weakness lines being spaced equally from said edge a distance slightly less than the width of the marginal area of interply adhesion, a product within the pouch and a sealed area closing the mouth of said pouch, said seal being restricted to the area between said weakness lines and the adjacent edge of said pouch.
Claim 9
Dependent Claim
17 words
A pouch as claimed in claim 5 wherein the outer ply sheet material is a metal foil.
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) | 1974-02-01 | 1974-08-03 | 1975-02-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-02-01 | 1978-08-03 | 1979-02-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-02-01 | 1982-08-03 | 1983-02-02 | $7700.00 | Window Closed / Lapsed |