US4715511A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Pack comprising an outer rigid envelope and an inner flexible envelope
Assignee: Nestec SA
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Filing: 1986-09-18
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Granted: 1987-12-29
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Expires: 2006-09-18
Abstract
Abstract A pack is constructed of a rigid outer envelope with flaps, a flexible inner envelope and means for immobilizing the flexible inner envelope in relation to the outer envelope. The immobilization means extends over one face of the outer envelope and to at least one flap, is designed to form an opening opposite a cut-out or a corresponding cutting line of said face and an opening to the flexible inner envelope and is fixed at least at the opening to the flexible inner envelope to form a tamper-proof membrane.
Inventors
- 👤 Dietrich Bohlen
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 07:48
CPC Classifications
B; B65; B65D; B65D77/00; B65D77/04; B65D77/06; B65D77/062; B65D77/064
Claims Analysis
Total Claims: 15
Claim 1
Independent Claim
82 words
A pack comprising (a) a rigid outer envelope having at least one face and at least one flap associated with the face; (b) a flexible inner envelope located within the outer envelope; and (c) immobilization means between the inner and outer envelope and affixed to the inner envelope, the immobilization means abutting a face of the outer envelope and extending to each flap associated with the face, and having an opening positioned opposite and corresponding with an opening defined on the face.
Claim 2
Dependent Claim
82 words
A pack comprising (a) a rigid outer envelope having at least one face and at least one flap associated with the face; (b) a flexible inner envelope located within the outer envelope; and (c) immobilization means between the inner and outer envelope and affixed to the inner envelope, the immobilization means abutting a face of the outer envelope and extending to each flap associated with the face, and having an opening positioned opposite and corresponding with an opening defined on the face.
Claim 3
Dependent Claim
15 words
A pack according to claim 1 wherein the defined face opening is a cutting line.
Claim 4
Dependent Claim
14 words
A pack according to claim 1 wherein the defined face opening is a cut-out.
Claim 5
Dependent Claim
25 words
A pack according to claim 1 wherein the immobilization means is affixed to the inner envelope at least at the opening of the immobilization means.
Claim 6
Dependent Claim
18 words
A pack according to claim 1 wherein the immobilization means extends substantially to the edge of each flap.
Claim 7
Dependent Claim
21 words
A pack according to claim 1 wherein the immobilization means is made of a material which is rigid and allows flexion.
Claim 8
Dependent Claim
18 words
A pack according to claim 1 wherein there are two flaps associated with the at least one face.
Claim 9
Dependent Claim
33 words
A pack according to claim 1 or 6 wherein the immobilization means is made of material selected from the group consisting of polystyrene, polyethylene, plastic-coated cardboard, aluminum paper and composites of these materials.
Claim 10
Dependent Claim
21 words
A pack according to claim 1 or 6 wherein the immobilization means has a thickness of from 500 to 1000 microns.
Claim 11
Dependent Claim
20 words
A pack according to claim 1 or 6 wherein the immobilization means is formed from a rectangular sheet of material.
Claim 12
Dependent Claim
23 words
A pack according to claim 1 wherein the immobilization means is configured about its opening to form a base for a closure means.
Claim 13
Dependent Claim
23 words
A pack according to claim 1 wherein the immobilization means is configured about its opening to form a base for a dispensing means.
Claim 14
Dependent Claim
13 words
A pack according to claim 12 wherein the dispensing means is a pump.
Claim 15
Dependent Claim
36 words
A pack according to claim 1 wherein the flexible inner envelope is made of a material selected from the group consisting of polystyrene, polyethylene, polypropylene, EVAL, polyester, plastic-coated paper, aluminum paper and composites of these materials.
References Cited (Backward Citations)
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US3112047A
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US3233817A
Cited
US3955743A
Cited
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Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1990-12-28 | 1991-06-29 | 1991-12-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1994-12-28 | 1995-06-29 | 1995-12-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1998-12-28 | 1999-06-29 | 1999-12-29 | $7700.00 | Window Closed / Lapsed |