US3071510A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Protein-tar acid dermatological preparation
Assignee: Dome Chemicals Inc
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Filing: 1958-06-05
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Granted: 1963-01-01
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Expires: 1978-06-05
Abstract
No abstract record available.
Inventors
- 👤 Irving B Wershaw
- 👤 John E Logun
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 03:59
CPC Classifications
A; A61; A61K; A61K36/00; A61K36/18; A61K36/185; A61K36/48; A61K38/00; A61K38/16; A61K38/168
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
147 words
A DERMATOLOGICAL PREPARATION CONSISTING ESSENTIALLY OF THE RREACTION PRODUCT OF A TAR ACID EXTRACT FROM A TAR OF THE GROUP CONSISTING OF COAL TARS AND WOOD TARS, THE TAR CID CONTENT OF SAID EXTRACT CONSISTING OF A MIXTURE OF TAR ACIDS HAVING THE FORMULA R(OH)N IN WHICH R IS FROM THE GROUP CONSISTING OF BENZENE AND NAPHTHALENE RADICALS AND N IS AN INTEGER FROM 1 TO 3, INCLUSIVE, THE EXTRACT CONTAINING FROM 30% TO 60% BY WEIGHT OF THE TAR ACIDS AND HAVING A PH OF FROM 3 TO 4, SAID TAR ACIDS CONSISTING MAINLY OF CRESOLS, NAPHTHOLS AND XYLENOLS, AND A DEFATTED SOY BEAN FLOUR HAVING A PROTEIN CONTENT OF FROM 40% TO 55% BY WEIGHT, AND A CARBOHYDRATE CONTENT OF FROM 25% TO 30% BY WEIGHT, IN THE PROPORTIONS OF FROM 1 TO 2 PARTS OF SAID SOY BEAN FLOUR TO 1 PART TAR EXTRACT.
Claim 2
Dependent Claim
147 words
A DERMATOLOGICAL PREPARATION CONSISTING ESSENTIALLY OF THE RREACTION PRODUCT OF A TAR ACID EXTRACT FROM A TAR OF THE GROUP CONSISTING OF COAL TARS AND WOOD TARS, THE TAR CID CONTENT OF SAID EXTRACT CONSISTING OF A MIXTURE OF TAR ACIDS HAVING THE FORMULA R(OH)N IN WHICH R IS FROM THE GROUP CONSISTING OF BENZENE AND NAPHTHALENE RADICALS AND N IS AN INTEGER FROM 1 TO 3, INCLUSIVE, THE EXTRACT CONTAINING FROM 30% TO 60% BY WEIGHT OF THE TAR ACIDS AND HAVING A PH OF FROM 3 TO 4, SAID TAR ACIDS CONSISTING MAINLY OF CRESOLS, NAPHTHOLS AND XYLENOLS, AND A DEFATTED SOY BEAN FLOUR HAVING A PROTEIN CONTENT OF FROM 40% TO 55% BY WEIGHT, AND A CARBOHYDRATE CONTENT OF FROM 25% TO 30% BY WEIGHT, IN THE PROPORTIONS OF FROM 1 TO 2 PARTS OF SAID SOY BEAN FLOUR TO 1 PART TAR EXTRACT.
References Cited (Backward Citations)
US2185255A
Cited
US2876164A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1965-12-31 | 1966-07-02 | 1967-01-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-12-31 | 1970-07-02 | 1971-01-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-12-31 | 1974-07-02 | 1975-01-01 | $7700.00 | Window Closed / Lapsed |