Patent US3558788A successfully refreshed from Google Patents.
Patent US2996436A successfully refreshed from Google Patents.
US2996436A
Expired / Lapsed
US
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Process for the colorimetric determination of lactic dehydrogenase
Assignee: Sigma Chemical Co
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Filing: 1958-06-02
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Granted: 1961-08-15
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Expires: 1978-06-02
Abstract
No abstract record available.
Inventors
- 👤 Broida Dan
- 👤 Berger Louis
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 15:06
CPC Classifications
C; C12; C12Q; C12Q1/00; C12Q1/26; C12Q1/32
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
60 words
THE PROCESS OF MEASURING LACTIC DEHYDROGENASE CONCENTRATION COLORIMETRICALLY, COMPRISING REACTING PYRUVATE ION WITH DIHYDRO DIPHOSPHO PYRIDINE NUCLEOTIDE IN THE PRESENCE OF AN UNKNOWN CONCENTRATION OF LACTIC DEHYDROGENASE, AT A KNOWN TEMPERATURE, FOR A KNOWN TIME, AND IN A KNOWN VOLUME OF SOLUTION, THE INITIAL AMOUNT OF PYRUVATE ION BEING KNOWN, AND THEREAFTER DETERMINING COLORIMETRICALLY THE AMOUNT OF UNREACTED PYRUVATE ION.
References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1964-08-14 | 1965-02-13 | 1965-08-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1968-08-14 | 1969-02-13 | 1969-08-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1972-08-14 | 1973-02-13 | 1973-08-15 | $7700.00 | Window Closed / Lapsed |