US3937221A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Disposable diaper with permanently attached closure system with a string gripper
Assignee: Johnson and Johnson
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Filing: 1974-07-18
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Granted: 1976-02-10
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Expires: 1994-07-18
Abstract
Abstract A disposable diaper adhesive closure means is provided in which an adhesive tab used to apply the diaper about an infant is permanently attached to the diaper at one end, and the opposite free tacky end of the tab is folded over and releasably adhered to a central portion of the tab which is provided with a release coated surface. A string separator attached to the adhesive tab is interposed between the folded over free tacky end of the tab and the central portion leaving an exposed string end so that the exposed string end can be pulled to release the free end of the tab for use in fastening the diaper about a baby. The string remains attached to the tacky free end of the tab. This eliminates the need for disposal by the consumer of a cover strip or of any other part of the adhesive closure means when the diaper is applied.
Inventors
- 👤 Ludwig Tritsch
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 13:15
CPC Classifications
A; A61; A61F; A61F13/00; A61F13/15; A61F13/56; A61F13/58
Claims Analysis
Total Claims: 8
Claim 1
Independent Claim
159 words
An adhesive tab means for a disposable diaper having an absorbent layer and a moisture-impervious backing sheet at one side thereof which comprises an elongated tape segment permanently attached at one end to said backing sheet at a marginal location thereon and providing a central portion and a free end; a release coating on a surface of said central portion which faces in the same direction as said absorbent layer; an adhesive coating on said free end contiguous to said release coating; and an elongated separator means attached to said free end and extending substantially transversely across and beyond the perimetric limits of said free end; said free end being folded over upon said central portion and being releasably adhered to said release coating, and a portion of said elongated separator means protruding beyond said free end and being adapted for gripping to peel said free end away from said central portion for fastening said diaper about a baby.
Claim 2
Dependent Claim
159 words
An adhesive tab means for a disposable diaper having an absorbent layer and a moisture-impervious backing sheet at one side thereof which comprises an elongated tape segment permanently attached at one end to said backing sheet at a marginal location thereon and providing a central portion and a free end; a release coating on a surface of said central portion which faces in the same direction as said absorbent layer; an adhesive coating on said free end contiguous to said release coating; and an elongated separator means attached to said free end and extending substantially transversely across and beyond the perimetric limits of said free end; said free end being folded over upon said central portion and being releasably adhered to said release coating, and a portion of said elongated separator means protruding beyond said free end and being adapted for gripping to peel said free end away from said central portion for fastening said diaper about a baby.
Claim 3
Dependent Claim
21 words
The adhesive tab means as set forth in claim 1 wherein said elongated separator means is a short length of string.
Claim 4
Dependent Claim
27 words
The adhesive tab means as set forth in claim 2 wherein the string is positioned near the narrow edge of the folded-over free end of the tab.
Claim 5
Dependent Claim
27 words
The adhesive tab means as set forth in claim 2 wherein the string extends beyond the tab for about one-fourth to about one width of the tab.
Claim 6
Dependent Claim
37 words
The adhesive tab means as set forth in claim 1 wherein said elongated separator means is interposed between said folded-over free end and said central portion and is held on said free end by said adhesive coating.
Claim 7
Dependent Claim
165 words
In combination with a disposable diaper having an absorbent layer and a moisture-impervious backing sheet substantially coextensive therewith, the improvement comprising: an adhesive tab means which is an elongated tape segment having one end permanently adhered to said backing sheet at a marginal location thereon and providing a central portion and a free end, having a release coating on a surface of said central portion facing in the same direction as said absorbent layer, having an adhesive coating on said free end contiguous to said release coating, and having an elongated separator means attached to said free end and extending substantially transversely across and beyond the perimetric limits of said free end; said free end being folded over upon said central portion and being releasably adhered to said release coating, and a portion of said elongated separator means protruding beyond said free end and being adapted for gripping to peel said free end away from said central portion for fastening said diaper about a baby.
Claim 8
Dependent Claim
165 words
In combination with a disposable diaper having an absorbent layer and a moisture-impervious backing sheet substantially coextensive therewith, the improvement comprising: an adhesive tab means which is an elongated tape segment having one end permanently adhered to said backing sheet at a marginal location thereon and providing a central portion and a free end, having a release coating on a surface of said central portion facing in the same direction as said absorbent layer, having an adhesive coating on said free end contiguous to said release coating, and having an elongated separator means attached to said free end and extending substantially transversely across and beyond the perimetric limits of said free end; said free end being folded over upon said central portion and being releasably adhered to said release coating, and a portion of said elongated separator means protruding beyond said free end and being adapted for gripping to peel said free end away from said central portion for fastening said diaper about a baby.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1979-02-09 | 1979-08-11 | 1980-02-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1983-02-09 | 1983-08-11 | 1984-02-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1987-02-09 | 1987-08-11 | 1988-02-10 | $7700.00 | Window Closed / Lapsed |