Patent US4413621A successfully refreshed from Google Patents.
US4413621A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Film dressing
Assignee: Ethicon Inc
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Filing: 1981-12-11
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Granted: 1983-11-08
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Expires: 2001-12-11
Abstract
Abstract A high moisture vapor permeable film dressing with an adhesive backing and a release sheet are disclosed. The dressing has two opposed side edges which are free of adhesive and a perforation through the adhesive near the side edge to allow the dressing to be applied to the patient and the adhesive-free edges removed, which prevents the edges of the dressing from rolling off the patient and dislodging the dressing.
Inventors
- 👤 Robert W. McCracken
- 👤 James P. Dellas
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 17:29
CPC Classifications
A; A61; A61F; A61F13/00; A61F13/02; A61F13/023; A61L; A61L15/00; A61L15/16; A61L15/42; A61L15/58
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
123 words
An adhesive dressing comprising a transparent polymeric film from 0.6 to 10 mils thick having a moisture vapor transmission rate of at least 15 grams per 100 square inches per 24 hours and being impervious to liquid water, said film having a top edge, a bottom edge and two opposed side edges, a skin-adhering adhesive coating on one side of said film extending from said top edge to said bottom edge and between lines spaced inwardly from said opposed side edges to provide a pair of adhesive-free handling tabs on the side edges of said dressing, a perforation line parallel to each of said side edges and extending through said adhesive coating and said film and a release sheet covering said adhesive coating.
Claim 2
Dependent Claim
123 words
An adhesive dressing comprising a transparent polymeric film from 0.6 to 10 mils thick having a moisture vapor transmission rate of at least 15 grams per 100 square inches per 24 hours and being impervious to liquid water, said film having a top edge, a bottom edge and two opposed side edges, a skin-adhering adhesive coating on one side of said film extending from said top edge to said bottom edge and between lines spaced inwardly from said opposed side edges to provide a pair of adhesive-free handling tabs on the side edges of said dressing, a perforation line parallel to each of said side edges and extending through said adhesive coating and said film and a release sheet covering said adhesive coating.
Claim 3
Dependent Claim
27 words
The dressing of claim 1 in which there is a semicircular cutout through said release sheet at a side edge of said dressing to expose said film.
Claim 4
Dependent Claim
18 words
The dressing of claim 1 in which the film has a thickness of from 1 to 3 mils.
Claim 5
Dependent Claim
125 words
An adhesive dressing comprising a transparent film of from 0.6 to 10 mils thick having a moisture vapor transmission rate of at least 15 grams per 100 square inches per 24 hours but being impervious to liquid water, said film having a top edge, a bottom edge and two opposed side edges, at least one perforation line through said film substantially parallel to a first side edge and spaced inwardly from said first side edge, a skin-adhering adhesive coating on said film extending from said top edge to said bottom edge and from said second side edge to a line between the perforation line and the first side edge of the dressing to provide an adhesive-free handling tab, a release sheet covering the adhesive coating.
Claim 6
Dependent Claim
125 words
An adhesive dressing comprising a transparent film of from 0.6 to 10 mils thick having a moisture vapor transmission rate of at least 15 grams per 100 square inches per 24 hours but being impervious to liquid water, said film having a top edge, a bottom edge and two opposed side edges, at least one perforation line through said film substantially parallel to a first side edge and spaced inwardly from said first side edge, a skin-adhering adhesive coating on said film extending from said top edge to said bottom edge and from said second side edge to a line between the perforation line and the first side edge of the dressing to provide an adhesive-free handling tab, a release sheet covering the adhesive coating.
References Cited (Backward Citations)
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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) | 1986-11-07 | 1987-05-09 | 1987-11-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1990-11-07 | 1991-05-09 | 1991-11-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1994-11-07 | 1995-05-09 | 1995-11-08 | $7700.00 | Window Closed / Lapsed |