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Patent US4434181A successfully refreshed from Google Patents.
US4434181A
Expired / Lapsed
US
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Teat dip
Assignee: NEW RAC CORP
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Filing: 1982-09-29
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Granted: 1984-02-28
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Expires: 2002-09-29
Abstract
Abstract A method and composition for the prevention of mastitis in animals. The composition comprises a water soluble film former such as hydroxypropyl cellulose, ethyl cellulose and methyl cellulose, and chlorhexidine (preferably as the gluconate), carried in a freeze-resistant, rapidly evaporating solvent comprising a volatile alcohol. When animal teats are dipped into the composition, a liquid film containing chlorhexidine remains on the teats, and the liquid vehicle quickly evaporates to form a protective film that coats the teats to prevent bacterial infection.
Inventors
- 👤 George B. Marks, Sr.
- 👤 D. Michael Fearing
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 19:07
CPC Classifications
A; A61; A61K; A61K31/00; A61K31/13; A61K31/155; A01; A01N; A01N47/00; A01N47/40; A01N47/42; A01N47/44; A61K9/00; A61K9/0012; A61K9/0041
Claims Analysis
Total Claims: 10
Claim 1
Independent Claim
101 words
A liquid teat dip composition having a freezing point not less than about -5° C. and capable, upon application to the teats of an animal, of quickly forming a soft, flexible coating that is substantially dry to the touch and that can readily be washed from the teats by water washing, comprising an effective quantity of a chlorhexidine antiseptic, a water-soluble film-former derived from cellulose in an amount ranging from about 10% to about 20% by weight of the composition, and a liquid vehicle including a volatile alcohol in an amount not less than about 80% by weight of the composition.
Claim 2
Dependent Claim
101 words
A liquid teat dip composition having a freezing point not less than about -5° C. and capable, upon application to the teats of an animal, of quickly forming a soft, flexible coating that is substantially dry to the touch and that can readily be washed from the teats by water washing, comprising an effective quantity of a chlorhexidine antiseptic, a water-soluble film-former derived from cellulose in an amount ranging from about 10% to about 20% by weight of the composition, and a liquid vehicle including a volatile alcohol in an amount not less than about 80% by weight of the composition.
Claim 3
Dependent Claim
12 words
The composition of claim 1 wherein the chlorhexidene antiseptic is chlorhexidene gluconate.
Claim 4
Dependent Claim
12 words
The composition of claim 1 in which the volatile alcohol is isopropanol.
Claim 5
Dependent Claim
11 words
The composition of claim 1 wherein the film-former is hydroxypropyl cellulose.
Claim 6
Dependent Claim
52 words
The composition of claim 1 wherein the liquid vehicle is a volatile alcohol, and wherein the proportions of film-former and liquid vehicle are so chosen as to provide a soft, flexible coating that is dry to the touch within about five minutes of application of the composition to teats of an animal.
Claim 7
Dependent Claim
128 words
A liquid teat dip composition having a freezing point not greater than about -5° C. and capable, upon application to the teats of an animal, of quickly forming a soft, flexible coating that is substantially dry to the touch and that can readily be washed from the teats by water washing, comprising an effective quantity of a chlorhexidene antiseptic, from about 10% to about 20%, by weight of the composition, of hydroxypropyl cellulose, and a liquid vehicle that includes a volatile alcohol in sufficient amount, but not in an amount less than about 80% by weight of the composition, to cause a film formed from the composition upon the teats of an animal to become dry to the touch within about five minutes of application of the composition.
Claim 8
Dependent Claim
128 words
A liquid teat dip composition having a freezing point not greater than about -5° C. and capable, upon application to the teats of an animal, of quickly forming a soft, flexible coating that is substantially dry to the touch and that can readily be washed from the teats by water washing, comprising an effective quantity of a chlorhexidene antiseptic, from about 10% to about 20%, by weight of the composition, of hydroxypropyl cellulose, and a liquid vehicle that includes a volatile alcohol in sufficient amount, but not in an amount less than about 80% by weight of the composition, to cause a film formed from the composition upon the teats of an animal to become dry to the touch within about five minutes of application of the composition.
Claim 9
Dependent Claim
12 words
The composition of claim 6 in which the antiseptic is chlorhexidene gluconate.
Claim 10
Dependent Claim
12 words
The composition of claim 6 in which the liquid vehicle is isopropanol.
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) | 1987-02-27 | 1987-08-29 | 1988-02-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1991-02-27 | 1991-08-29 | 1992-02-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1995-02-27 | 1995-08-29 | 1996-02-28 | $7700.00 | Window Closed / Lapsed |