US4450844A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Patch system for use on the skin
Assignee: HILL TOP RES Inc
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Filing: 1981-11-23
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Granted: 1984-05-29
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Expires: 2001-11-23
Abstract
Abstract A patch system for use on the skin of a human or animal subject for predictive testing, diagnostic testing and to serve as a dermal delivery system for drugs. The patch system comprises an open, one-piece, inverted dish-shaped housing of non-toxic, inert, soft and flexible material. About its periphery the chamber terminates in a pair of parallel, spaced, continuous skin-contacting edges. The housing may contain an absorbent pad. The housing is mounted on a piece of adhesive coated tape by which it is affixed to the skin. Prior to use, the adhesive tape and the housing of the patch system may be provided with a protective release paper.
Inventors
- 👤 Robert A. Quisno
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 14:32
CPC Classifications
A; A61; A61B; A61B10/00; A61B10/0035; A61F; A61F13/00; A61F2013/00361; A61F2013/00365; A61F2013/00429; A61F2013/00434
Claims Analysis
Total Claims: 12
Claim 1
Independent Claim
121 words
A patch system for use on skin for predictive testing, diagnostic testing and dermal drug delivery, said patch system comprising an open-faced, integral, one-piece housing of non-toxic, inert, soft and flexible material, said housing having a substantially planar central body portion terminating in a peripheral body portion of substantially arcuate cross section curving outwardly and downwardly below said central body portion, said peripheral body portion terminating in an outer skin-contacting edge, an inner skin-contacting edge depending downwardly from said peripheral body portion, said skin-contacting inner and outer edges being parallel and spaced from each other and each being continuous, said skin-contacting inner and outer edges being coplanar, being the only skin-contacting portions of said housing, and having an air space therebetween.
Claim 2
Dependent Claim
121 words
A patch system for use on skin for predictive testing, diagnostic testing and dermal drug delivery, said patch system comprising an open-faced, integral, one-piece housing of non-toxic, inert, soft and flexible material, said housing having a substantially planar central body portion terminating in a peripheral body portion of substantially arcuate cross section curving outwardly and downwardly below said central body portion, said peripheral body portion terminating in an outer skin-contacting edge, an inner skin-contacting edge depending downwardly from said peripheral body portion, said skin-contacting inner and outer edges being parallel and spaced from each other and each being continuous, said skin-contacting inner and outer edges being coplanar, being the only skin-contacting portions of said housing, and having an air space therebetween.
Claim 3
Dependent Claim
14 words
The structure claimed in claim 1 including an absorbent pad located within said housing.
Claim 4
Dependent Claim
49 words
The structure claimed in claim 2 including a cover sheet comprising a piece of tape coated on one of its surfaces with a pressure sensitive adhesive, said central body portion of said housing being affixed to said adhesive-coated surface of said tape with said skin-contacting edges facing away therefrom.
Claim 5
Dependent Claim
49 words
The structure claimed in claim 1 including a cover sheet comprising a piece of tape coated on one of its sides with a pressure sensitive adhesive, said central body portion of said housing being affixed to said adhesive-coated side of said tape with said skin-contacting edges facing away therefrom.
Claim 6
Dependent Claim
21 words
The structure claimed in claim 4 including a removable release paper covering said housing and said adhesive-coated surface of said tape.
Claim 7
Dependent Claim
13 words
The structure claimed in claim 1 wherein said housing is circular in configuration.
Claim 8
Dependent Claim
64 words
The structure claimed in claim 1 wherein said outer skin-contacting edge of said peripheral body portion is of rounded configuration, said inner skin-contacting edge comprising a first downwardly depending portion and a second annular flange-like portion extending inwardly of said housing and away from said outer skin-contacting edge, said annular flange-like portion having a flat skin-contacting surface substantially coplanar with said outer skin-contacting edge.
Claim 9
Dependent Claim
31 words
The structure claimed in claim 7 including an absorbent pad located within said housing, said annular flange-like portion of said inner skin-contacting edge engaging and retaining said pad within said housing.
Claim 10
Dependent Claim
49 words
The structure claimed in claim 4 including a cover sheet comprising a piece of tape coated on one of its sides with a pressure sensitive adhesive, said central body portion of said housing being affixed to said adhesive-coated side of said tape with said skin-contacting edges facing away therefrom.
Claim 11
Dependent Claim
21 words
The structure claimed in claim 9 including a removable release paper covering said housing and said adhesive-coated side of said tape.
Claim 12
Dependent Claim
13 words
The structure claimed in claim 4 wherein said housing is circular in configuration.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1987-05-29 | 1987-11-28 | 1988-05-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1991-05-29 | 1991-11-28 | 1992-05-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1995-05-29 | 1995-11-28 | 1996-05-29 | $7700.00 | Window Closed / Lapsed |