US4073291A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Topical device for administering tretinoin
Assignee: Johnson and Johnson
•
Filing: 1976-07-28
•
Granted: 1978-02-14
•
Expires: 1996-07-28
Abstract
Abstract Tretinoin is incorporated in the adhesive mass of a dermatologically acceptable pressure-sensitive adhesive tape for the localized topical treatment of such skin conditions as acne and warts.
Inventors
- 👤 John R. Marvel
- 👤 James A. Mezick
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 19:49
CPC Classifications
A; A61; A61L; A61L15/00; A61L15/16; A61L15/42; A61L15/44; A61L15/58; A61L2300/00; A61L2300/40; A61L2300/428
Claims Analysis
Total Claims: 12
Claim 1
Independent Claim
30 words
A therapeutic device comprising a flexible backing having coated thereon a dermatologically acceptable pressure-sensitive adhesive which is compatible with, and has uniformly distributed therein, a therapeutically effective amount of tretinoin.
Claim 2
Dependent Claim
30 words
A therapeutic device comprising a flexible backing having coated thereon a dermatologically acceptable pressure-sensitive adhesive which is compatible with, and has uniformly distributed therein, a therapeutically effective amount of tretinoin.
Claim 3
Dependent Claim
56 words
A therapeutic device of claim 1 comprising a flexible backing having a pressure-sensitive adhesive coated thereon, said pressure-sensitive adhesive being compatible with, and having uniformly dispersed therein, a therapeutically effective amount of tretinoin and being selected from the group consisting of rubber based pressure-sensitive adhesives, polyvinyl alkyl ether based pressure sensitive adhesives and acrylate pressure-sensitive adhesives.
Claim 4
Dependent Claim
15 words
A therapeutic device of claim 1 in which said pressure-sensitive adhesive is acrylate pressure-sensitive adhesive.
Claim 5
Dependent Claim
24 words
A therapeutic device of claim 1 in which said treinoin is present in an amount of at least about 2 milligrams per square foot.
Claim 6
Dependent Claim
16 words
A therapeutic device of claim 4 in which said pressure-sensitive adhesive is an acrylate pressure-sensitive adhesive.
Claim 7
Dependent Claim
34 words
A therapeutic device of claim 1 comprising a transparent flexible backing, a transparent acrylate pressure-sensitive adhesive coating on said backing, said pressure-sensitive adhesive coating containing a therapeutically effective amount of tretinoin uniformly dispersed therethrough.
Claim 8
Dependent Claim
25 words
A therapeutic device of claim 4 in which the amount of said tretinoin is between about 2 milligrams and about 22 milligrams per square foot.
Claim 9
Dependent Claim
36 words
A pressure sensitive adhesive tape comprising a flexible backing having a pressure sensitive interpolymer of an acrylate ester adhesive coating on said backing, said pressure sensitive coating containing a therapeutic amount of tretinoin uniformly distributed therein.
Claim 10
Dependent Claim
36 words
A pressure sensitive adhesive tape comprising a flexible backing having a pressure sensitive interpolymer of an acrylate ester adhesive coating on said backing, said pressure sensitive coating containing a therapeutic amount of tretinoin uniformly distributed therein.
Claim 11
Dependent Claim
13 words
A therapeutic device of claim 5 in which said flexible backing comprises polyethylene.
Claim 12
Dependent Claim
13 words
A therapeutic device of claim 6 in which said flexible backing comprises polyethylene.
References Cited (Backward Citations)
US3896789A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1981-02-13 | 1981-08-15 | 1982-02-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1985-02-13 | 1985-08-15 | 1986-02-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1989-02-13 | 1989-08-15 | 1990-02-14 | $7700.00 | Window Closed / Lapsed |