US3897480A
Expired / Lapsed
US
⏱️ 0.0 years remaining
N-(mercaptoacyl)aminoacids
Assignee: Santen Pharmaceutical Co Ltd
•
Filing: 1973-09-20
•
Granted: 1975-07-29
•
Expires: 1993-09-20
Abstract
Abstract Compounds useful for prophyaxis and therapy in treating a metabolic disorder, such as, nosotoxicosis due to a heavy metal, radiation disorder, diabetes or hepatitis and represented by the formula and intermediates therefor are disclosed.
Inventors
- 👤 Itaru Mita
- 👤 Shigeo Okumura
- 👤 Shigeru Yamabe
- 👤 Yoshihiko Funae
- 👤 Junzo Matumoto
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 13:17
CPC Classifications
C; C07; C07C; C07C51/00; C07C51/58; C07C51/60
Claims Analysis
Total Claims: 8
Claim 1
Independent Claim
6 words
A COMPOUND REPRESENTED BY THE FORMULA
Claim 2
Dependent Claim
6 words
A COMPOUND REPRESENTED BY THE FORMULA
Claim 3
Dependent Claim
5 words
N-(2-mercaptophenylacetyl)glycine according to claim 1.
Claim 4
Dependent Claim
4 words
N-(2-mercapto-p-chlorophenylacetyl)glycine according to claim
Claim 5
Dependent Claim
5 words
N-(2-mercaptopropionylphenyl)glycine according to claim 1.
Claim 6
Dependent Claim
5 words
N-(2-mercapto-3-phenylpropionyl)glycine according to claim 1.
Claim 7
Dependent Claim
1 words
N-(2-mercaptopropionyl)phenylalanine.
Claim 8
Dependent Claim
1 words
N-(2-mercaptopropionyl)phenylalanine.
References Cited (Backward Citations)
US3246025A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1978-07-28 | 1979-01-27 | 1979-07-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1982-07-28 | 1983-01-27 | 1983-07-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1986-07-28 | 1987-01-27 | 1987-07-29 | $7700.00 | Window Closed / Lapsed |