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US4624875A Expired / Lapsed US ⏱️ 0.0 years remaining

Protected card

Assignee: Kojima Ltd
•
Filing: 1984-06-25
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Granted: 1986-11-25
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Expires: 2004-06-25
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Abstract

Abstract A card assembly comprising a backing sheet, a first transparent film bonded to the backing sheet along one side margin area portion through a first pressure sensitive adhesive coating, a transparent releasable film attached to the first transparent film along the remaining area portion, a cut line of a generally closed-loop configuration formed through the first transparent film and the releasable film to define a configuration corresponding to the circumference of a thin article to be interposed between the releasable sheet and the backing sheet, the configuration defining margin area portion on the releasable sheet being along the entire circumference thereof, and a second transparent film secured to the outer surface of the first transparent film along the entire surface thereof through an adhesive coating.

Inventors

  • 👤 Mitsuo Watanabe
  • 👤 Takao Asaba

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-10-27 07:29
CPC Classifications
B; B42; B42D; B42D15/00; B42D15/02; B42D15/027; Y; Y10; Y10S; Y10S283/00; Y10S283/904; Y10T; Y10T428/00; Y10T428/14; Y10T428/149; Y10T428/24; Y10T428/24777; Y10T428/24793; Y10T428/24802; Y10T428/24851; Y10T428/2486; Y10T428/24868; Y10T428/24876

Claims Analysis

Total Claims: 2
Claim 1
Independent Claim 172 words
A card assembly comprising a backing sheet, a first transparent film having an inner surface bonded to the backing sheet along one side margin area portion through a first pressure sensitive adhesive coating, a transparent releasable film adhesively bonded by a second pressure sensitive adhesive to an inner surface of the first transparent film along the remaining area portion, a cut line of a generally closed-loop configuration formed through the first transparent film and the releasable film to define a configuration corresponding to the circumference of a thin article to be interposed between the releasable sheet and the backing sheet, said configuration defining a margin area portion on the releasable sheet being along the entire circumference of the releasable sheet such that marginal areas thereof are removably attached to the first transparent film to expose the second pressure sensitive adhesive coating on said first transparent film and a second transparent film secured to the outer surface of the first transparent film along the entire surface thereof by means of an adhesive coating.
Claim 2
Dependent Claim 172 words
A card assembly comprising a backing sheet, a first transparent film having an inner surface bonded to the backing sheet along one side margin area portion through a first pressure sensitive adhesive coating, a transparent releasable film adhesively bonded by a second pressure sensitive adhesive to an inner surface of the first transparent film along the remaining area portion, a cut line of a generally closed-loop configuration formed through the first transparent film and the releasable film to define a configuration corresponding to the circumference of a thin article to be interposed between the releasable sheet and the backing sheet, said configuration defining a margin area portion on the releasable sheet being along the entire circumference of the releasable sheet such that marginal areas thereof are removably attached to the first transparent film to expose the second pressure sensitive adhesive coating on said first transparent film and a second transparent film secured to the outer surface of the first transparent film along the entire surface thereof by means of an adhesive coating.

References Cited (Backward Citations)

US3950580A Cited
US3868293A Cited
US3983277A Cited
US4225369A Cited
US4231833A Cited
US4223058A Cited
US4343851A Cited
US4400419A Cited

USPTO Annuity & Maintenance Windows

Annuity Stage Window Opens Payment Deadline Surcharge Period Until Estimated Fee Status
3.5 Years (Year 4) 1989-11-24 1990-05-26 1990-11-25 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1993-11-24 1994-05-26 1994-11-25 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 1997-11-24 1998-05-26 1998-11-25 $7700.00 Window Closed / Lapsed

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