US5071971A
Expired / Lapsed
US
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External skin care preparation
Assignee: Kao Corp
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Filing: 1990-09-19
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Granted: 1991-12-10
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Expires: 2010-09-19
Abstract
Abstract An external skin care preparation comprising a compound represented by the following general formula (I) or (II), or a salt thereof: ##STR1## wherein R 1 means an aliphatic hydrocarbon group having 9-25 carbon atoms, A and B denote specific groups respectively, R 6 and R 7 are individually an aliphatic hydrocarbon group having 10-26 carbon atoms, and R 8 denotes a group --CH 2 CH 2 OH, --CH 2 COOH, or --COCH 3 .
Inventors
- 👤 Shinji Yano
- 👤 Akira Kawamata
- 👤 Yoshihiro Minematsu
- 👤 Shuichi Akazaki
- 👤 Mitsuko Zama
- 👤 Genji Imokawa
- 👤 Naotake Takaishi
- 👤 Tsuyoshi Ohtomo
- 👤 Takashi Komori
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 01:40
CPC Classifications
A; A61; A61K; A61K8/00; A61K8/18; A61K8/30; A61K8/40; A61K8/42; A61K8/02; A61K8/0212; A61K8/68; A61Q; A61Q19/00; C; C07; C07H; C07H15/00; C07H15/02; C07H15/04; A61Q1/00; A61Q1/02; A61Q1/04; A61Q1/06; A61Q19/10; A61Q5/00; A61Q5/006
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
62 words
A glycolipid derivative represented by the following formula (Ie'): ##STR50## wherein R 1 means an aliphatic hydrocarbon group having 9-25 carbon atoms, R 51 denotes an aliphatic hydrocarbon group having 10-26 carbon atoms, and R 33 and R 34 are individually H or sugar residuum, with a proviso that R 33 and R 34 do not mean H at the same time.
Claim 2
Dependent Claim
62 words
A glycolipid derivative represented by the following formula (Ie'): ##STR50## wherein R 1 means an aliphatic hydrocarbon group having 9-25 carbon atoms, R 51 denotes an aliphatic hydrocarbon group having 10-26 carbon atoms, and R 33 and R 34 are individually H or sugar residuum, with a proviso that R 33 and R 34 do not mean H at the same time.
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) | 1994-12-09 | 1995-06-10 | 1995-12-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1998-12-09 | 1999-06-10 | 1999-12-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2002-12-09 | 2003-06-10 | 2003-12-10 | $7700.00 | Window Closed / Lapsed |