US3425912A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Laboratory reagent for assay of alkaline phosphatase
Assignee: GlaxoSmithKline LLC
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Filing: 1966-11-14
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Granted: 1969-02-04
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Expires: 1986-11-14
Abstract
No abstract record available.
Inventors
- 👤 Daniel H Deutsch
- 👤 Stanley E Green
- 👤 John D Murray
- 👤 Edward W Saleeby
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 09:11
CPC Classifications
C; C12; C12Q; C12Q1/00; C12Q1/34; C12Q1/42; C12Q2334/00; C12Q2334/10
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
90 words
A STABLE ASSAY MATERIAL FOR DISSOLVING IN WATER TO CREATE A LIQUID REAGENT FOR ASSAYING A SPECIMEN FOR THE ENZYMES, ALKALINE OR ACID PHOSPHATASES, INCLUDING THE COMBINATION OF: THE SUBSTRATE PARA-NITROPHENYL PHOSPHORIC ACID AMINE SALT; A DRY BUFFER CAPABLE OF MAINTAINING THE PH BETWEEN 4 AND 11; A METAL ACTIVATOR COMPRISING A MAGNESIUM SALT; EACH SUBSTANCE ABOVE BEING PRESENT IN THAT QUANTITY SO AS TO INSURE A UNIFORM RATE OR REACTION CATALYZED BY THE ALKALINE PHOSPHATASE BEING DETERMINED AND SO AS TO CAUSE SAID RATE TO BE OPTIMAL OR MAXIMAL.
Claim 2
Dependent Claim
90 words
A STABLE ASSAY MATERIAL FOR DISSOLVING IN WATER TO CREATE A LIQUID REAGENT FOR ASSAYING A SPECIMEN FOR THE ENZYMES, ALKALINE OR ACID PHOSPHATASES, INCLUDING THE COMBINATION OF: THE SUBSTRATE PARA-NITROPHENYL PHOSPHORIC ACID AMINE SALT; A DRY BUFFER CAPABLE OF MAINTAINING THE PH BETWEEN 4 AND 11; A METAL ACTIVATOR COMPRISING A MAGNESIUM SALT; EACH SUBSTANCE ABOVE BEING PRESENT IN THAT QUANTITY SO AS TO INSURE A UNIFORM RATE OR REACTION CATALYZED BY THE ALKALINE PHOSPHATASE BEING DETERMINED AND SO AS TO CAUSE SAID RATE TO BE OPTIMAL OR MAXIMAL.
References Cited (Backward Citations)
US2359052A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1972-02-04 | 1972-08-05 | 1973-02-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-02-04 | 1976-08-05 | 1977-02-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-02-04 | 1980-08-05 | 1981-02-04 | $7700.00 | Window Closed / Lapsed |