US3002893A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method for the determination of serum acid phosphatase and diagnostic preparation therefor
Assignee: Warner Lambert Co LLC
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Filing: 1958-11-13
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Granted: 1961-10-03
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Expires: 1978-11-13
Abstract
No abstract record available.
Inventors
- 👤 Arthur L Babson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 13:47
CPC Classifications
C; C12; C12Q; C12Q1/00; C12Q1/34; C12Q1/42; C12Q2334/00; C12Q2334/30
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
35 words
A SUBSTRATE FOR USE IN THE DETERMINATION OF PHOSTATIC ACID PHOSPHATASE IN SERUM WHICH COMPRISES A BUFFER ADAPTED TO MAINTAIN THE SERUM PH WITHIN ABOUT 4.5 TO ABOUT 5.5 AND A SALT OF A-NAPHTHYL PHOSPHATE.
Claim 2
Dependent Claim
35 words
A SUBSTRATE FOR USE IN THE DETERMINATION OF PHOSTATIC ACID PHOSPHATASE IN SERUM WHICH COMPRISES A BUFFER ADAPTED TO MAINTAIN THE SERUM PH WITHIN ABOUT 4.5 TO ABOUT 5.5 AND A SALT OF A-NAPHTHYL PHOSPHATE.
Claim 3
Independent Claim
79 words
A METHOD FOR THE DETERMINATION OF PORSTATIC ACID PHOSPHATASE IN SERUM WHICH COMPRISES INCUBATING A SMALL VOLUME OF SERUM IN A SUBSTRATE COMPRISING A BUFFER ADAPTED TO MAINTAIN THE PH OF SAID SERUM WITHIN ABOUT 4.5 TO ABOUT 5.5 AND A SALT OF A-NAPHTHYL PHOSPHATE, ADDING TO SAID INCUBATED MIXTURE AN AZONIUM SALT OF AN AROMATIC AMINE AND COMPARING THE DEVELOPED COLOR TO THE COLOR DEVELOPED IN SERUM IN THE PRESENCE OF A KNOWN CONCENTRATION OF PROSTATIC ACID PHOSPHATASE.
Claim 4
Independent Claim
79 words
A METHOD FOR THE DETERMINATION OF PORSTATIC ACID PHOSPHATASE IN SERUM WHICH COMPRISES INCUBATING A SMALL VOLUME OF SERUM IN A SUBSTRATE COMPRISING A BUFFER ADAPTED TO MAINTAIN THE PH OF SAID SERUM WITHIN ABOUT 4.5 TO ABOUT 5.5 AND A SALT OF A-NAPHTHYL PHOSPHATE, ADDING TO SAID INCUBATED MIXTURE AN AZONIUM SALT OF AN AROMATIC AMINE AND COMPARING THE DEVELOPED COLOR TO THE COLOR DEVELOPED IN SERUM IN THE PRESENCE OF A KNOWN CONCENTRATION OF PROSTATIC ACID PHOSPHATASE.
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) | 1964-10-02 | 1965-04-03 | 1965-10-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1968-10-02 | 1969-04-03 | 1969-10-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1972-10-02 | 1973-04-03 | 1973-10-03 | $7700.00 | Window Closed / Lapsed |