US3206376A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of determining glutamic-oxalacetic transaminase
Assignee: Warner Lambert Co LLC
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Filing: 1964-05-22
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Granted: 1965-09-14
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Expires: 1984-05-22
Abstract
No abstract record available.
Inventors
- 👤 Arthur L Babson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 20:10
CPC Classifications
C; C12; C12Q; C12Q1/00; C12Q1/48; C12Q1/52
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
90 words
N A METHOD OF DETERMING THE CONCENTRATION OF GLUTAMIC-OXALACETIC TRANSAMINASE IN A BODY FLUID BY CONTACTING SAID BODY FLUID WITH A MIXTURE OF L-ASPARTIC ACID, A-KETOGLUTARIC ACID AND A BUFFER ADAPTED TO MAINTAIN THE PH BETWEEN 7 AND 7.5 AT A TEMPERATURE BETWEEN ABOUT 25*C. AND ABOUT 40*C. FOR 15 TO ABOUT 30 MINUTES AND THEN ADDING A DIAZONIUM SALT TO DEVELOP A VISIBLE COLOR, THE IMPROVEMENT WHICH COMPRISES ACIDIFYING THE COLORED MIXTURE OBTAINED TO GIVE A PH OF NOT MORE THAN 2.5 BEFORE MEASURING THE DEPTH OF COLOR FORMED.
Claim 2
Dependent Claim
90 words
N A METHOD OF DETERMING THE CONCENTRATION OF GLUTAMIC-OXALACETIC TRANSAMINASE IN A BODY FLUID BY CONTACTING SAID BODY FLUID WITH A MIXTURE OF L-ASPARTIC ACID, A-KETOGLUTARIC ACID AND A BUFFER ADAPTED TO MAINTAIN THE PH BETWEEN 7 AND 7.5 AT A TEMPERATURE BETWEEN ABOUT 25*C. AND ABOUT 40*C. FOR 15 TO ABOUT 30 MINUTES AND THEN ADDING A DIAZONIUM SALT TO DEVELOP A VISIBLE COLOR, THE IMPROVEMENT WHICH COMPRISES ACIDIFYING THE COLORED MIXTURE OBTAINED TO GIVE A PH OF NOT MORE THAN 2.5 BEFORE MEASURING THE DEPTH OF COLOR FORMED.
References Cited (Backward Citations)
US3002893A
Cited
US3069330A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1968-09-13 | 1969-03-15 | 1969-09-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-09-13 | 1973-03-15 | 1973-09-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-09-13 | 1977-03-15 | 1977-09-14 | $7700.00 | Window Closed / Lapsed |