Patent US4608288A successfully refreshed from Google Patents.
US4608288A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Tamper proof label or seal
Assignee: DUDZIK
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Filing: 1984-08-21
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Granted: 1986-08-26
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Expires: 2004-08-21
Abstract
Abstract A label or seal consists of a transparent base foil having an adhesive layer on one side. An intermediate layer or film is applied to the side having the adhesive layer, adhesion between the base foil and the intermediate layer being decreased in some regions. A cover foil is provided which, with its adhesive layer, is laminated onto the other side of the base foil. The cover foil is irreversibly stretchable under tension and/or easily breakable. Further, a safety rim is formed by a portion of the cover foil which extends past the periphery of the base foil.
Inventors
- 👤 Heinz Spindler
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 18:50
CPC Classifications
G; G09; G09F; G09F3/00; G09F3/02; G09F3/0291; G09F3/0292; Y; Y10; Y10S; Y10S428/00; Y10S428/914; Y10S428/915; Y10S428/916; Y10T; Y10T428/00; Y10T428/14; Y10T428/1462; Y10T428/1481; Y10T428/24; Y10T428/24777; Y10T428/24793; Y10T428/24802; Y10T428/24826; Y10T428/28; Y10T428/2848
Claims Analysis
Total Claims: 11
Claim 1
Independent Claim
181 words
A label, comprising in combination a transparent base foil having first and second surfaces, said first surface including at least one preselected area; a first adhesive layer; an intermediate layer interposed between said first surface of said base foil and said first adhesive layer, said preselected area constituting a region of decreased adhesion between said base foil and said intermediate layer, said intermediate layer adhering to a said first adhesive layer outside of said preselected area at a certain adhesion exceeding said decreased adhesion, and a cover foil carrying a second adhesive layer, said second adhesive layer being applied to said second surface of said base foil so as to be aligned therewith in an initial position, said cover foil extending past said base foil so as to create a protective rim therebeyond, and being irreversibly deformable upon application of a force thereto, whereby, upon even partial removal of said cover foil from said base foil, any subsequently attempted realignment of said cover foil with said base foil in an endeavor to achieve said initial aligned position is no longer feasible.
Claim 2
Dependent Claim
181 words
A label, comprising in combination a transparent base foil having first and second surfaces, said first surface including at least one preselected area; a first adhesive layer; an intermediate layer interposed between said first surface of said base foil and said first adhesive layer, said preselected area constituting a region of decreased adhesion between said base foil and said intermediate layer, said intermediate layer adhering to a said first adhesive layer outside of said preselected area at a certain adhesion exceeding said decreased adhesion, and a cover foil carrying a second adhesive layer, said second adhesive layer being applied to said second surface of said base foil so as to be aligned therewith in an initial position, said cover foil extending past said base foil so as to create a protective rim therebeyond, and being irreversibly deformable upon application of a force thereto, whereby, upon even partial removal of said cover foil from said base foil, any subsequently attempted realignment of said cover foil with said base foil in an endeavor to achieve said initial aligned position is no longer feasible.
Claim 3
Dependent Claim
19 words
A label as set forth in claim 1, wherein said cover foil is made of a light refracting material.
Claim 4
Dependent Claim
19 words
A label as set forth in claim 1, wherein said cover foil is made of a light defracting material.
Claim 5
Dependent Claim
19 words
A label as set forth in claim 1, wherein said cover foil breaks upon application of a pulling force.
Claim 6
Dependent Claim
12 words
A label as set forth in claim 1, wherein said cover foil
Claim 7
Dependent Claim
25 words
A label as set forth in claim 1, wherein said cover foil is made of acrylic material. stretches irreversibly upon application of a pull thereto.
Claim 8
Dependent Claim
18 words
A label as set forth in claim 1, wherein said cover foil is made of a vinyl material.
Claim 9
Dependent Claim
17 words
A label as set forth in claim 1, further comprising a visible imprint on said cover foil.
Claim 10
Dependent Claim
24 words
A label as set forth in claim 1, further comprising an imprint on said cover foil visible only upon application of ultraviolet light thereto.
Claim 11
Dependent Claim
37 words
A label as set forth in claim 7, wherein said imprint comprises a raster having a first set of parallel lines and a second set of parallel lines extending in a direction perpendicular to said first set.
References Cited (Backward Citations)
US3623944A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1989-08-25 | 1990-02-24 | 1990-08-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1993-08-25 | 1994-02-24 | 1994-08-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1997-08-25 | 1998-02-24 | 1998-08-26 | $7700.00 | Window Closed / Lapsed |