US4452736A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Substrates for measuring plasmin
Assignee: Nitto Boseki Co Ltd
•
Filing: 1982-09-13
•
Granted: 1984-06-05
•
Expires: 2002-09-13
Abstract
Abstract A novel substrate for measuring plasmin which has chromophoric and fluoroescent properties against plasmin or a plasmin-like enzyme, which is characterized by being a compound of the formula or a salt thereof: <IMAGE> wherein m = 1, 2, 3 or 4 <IMAGE> <IMAGE> <IMAGE> wherein R1 = <IMAGE> (n = 0, 1, 2 or 3,R3 = H or CH3), (CH2)nCH(CH3)2 (n = 0, 1, 2 or 3) <IMAGE> R2 = (CH2)n+1CH3 (n = 0, 1, 2 or 3) <IMAGE> (n = 0, 1, 2 or 3,R4, R4' and R4'' areH or CH3), <IMAGE> .
Inventors
- 👤 Takeshi Nagasawa
- 👤 Katsumasa Kuroiwa
- 👤 Katsuyuki Takabayashi
- 👤 Yoshio Nakamura
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 09:24
CPC Classifications
C; C07; C07K; C07K5/00; C07K5/04; C07K5/08; C07K5/0802; C07K5/0804; C07K5/0808; C07K5/0806; C07K5/0815; C07K5/0819; C12; C12Q; C12Q1/00; C12Q1/34; C12Q1/37; C12Q2337/00; C12Q2337/10; C12Q2337/12; G; G01; G01N; G01N2333/00; G01N2333/90; G01N2333/914; G01N2333/948; G01N2333/968
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
37 words
A novel substrate for measuring plasmin which has chromophoric and fluoroescent properties on plasmin and plasmin-like enzymes, which is represented by a compound of the following general formula or a salt thereof: ##STR70## wherein ##STR71## wherein ##STR72##
Claim 2
Dependent Claim
37 words
A novel substrate for measuring plasmin which has chromophoric and fluoroescent properties on plasmin and plasmin-like enzymes, which is represented by a compound of the following general formula or a salt thereof: ##STR70## wherein ##STR71## wherein ##STR72##
References Cited (Backward Citations)
US4279810A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1987-06-05 | 1987-12-05 | 1988-06-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1991-06-05 | 1991-12-05 | 1992-06-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1995-06-05 | 1995-12-05 | 1996-06-05 | $7700.00 | Window Closed / Lapsed |