US4485809A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Film window dressing
Assignee: Ethicon Inc
•
Filing: 1981-12-11
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Granted: 1984-12-04
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Expires: 2001-12-11
Abstract
Abstract A film dressing with a high moisture vapor transmission rate is disclosed. The film dressing has a release sheet attached to the dressing. There is a central region of the film, defined by perforation lines, which is applied to the patient. There are cut lines in the release sheet which are parallel to but spaced outside the perforations in the dressing to allow the release sheet to be removed, the adhesive portion of the film to be applied to the patient and the exterior portion of both the release sheet and the film to be removed.
Inventors
- 👤 James P. Dellas
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 11:20
CPC Classifications
A; A61; A61L; A61L15/00; A61L15/16; A61L15/42; A61F; A61F13/00; A61F13/02; A61F13/023; A61L15/22; A61L15/26; Y; Y10; Y10T; Y10T428/00; Y10T428/28
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
115 words
An adhesive dressing comprising a transparent polymeric film from 0.6 to 10 mils in thickness and having a moisture vapor transmission rate of at least 15 grams per 100 square inches per 24 hours and being impervious to liquid water, a skin adherent adhesive coating on one surface of said film, a release sheet covering said adhesive coating, a perforation line in said film spaced inwardly from the periphery of the film, a cut line in said release sheet in alignment with the perforations in said film to enable the central portion of the release sheet to be removed from the film and the remainder of the dressing without breaking the perforations in said film.
Claim 2
Dependent Claim
115 words
An adhesive dressing comprising a transparent polymeric film from 0.6 to 10 mils in thickness and having a moisture vapor transmission rate of at least 15 grams per 100 square inches per 24 hours and being impervious to liquid water, a skin adherent adhesive coating on one surface of said film, a release sheet covering said adhesive coating, a perforation line in said film spaced inwardly from the periphery of the film, a cut line in said release sheet in alignment with the perforations in said film to enable the central portion of the release sheet to be removed from the film and the remainder of the dressing without breaking the perforations in said film.
Claim 3
Dependent Claim
18 words
The adhesive dressing of claim 1 in which the film is from 1 to 3 mils in thickness.
Claim 4
Dependent Claim
42 words
The adhesive dressing of claim 1 in which the perforation line in the film is spaced between 1/2 inch and one inch from the edges of the dressing, and the cut line is spaced 1/16 to 1/4 inch outside the perforation line.
Claim 5
Dependent Claim
19 words
The adhesive dressing of claim 3 in which the cut line is spaced 1/8 inch outside the perforation line.
Claim 6
Dependent Claim
17 words
The adhesive dressing of claim 1 in which the perforation line also extends through the release sheet.
References Cited (Backward Citations)
US2629378A
Cited
US3143208A
Cited
US3550589A
Cited
US4281650A
Cited
US4302500A
Cited
US4341208A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1987-12-04 | 1988-06-04 | 1988-12-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1991-12-04 | 1992-06-04 | 1992-12-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1995-12-04 | 1996-06-04 | 1996-12-04 | $7700.00 | Window Closed / Lapsed |