US3236601A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of detecting unconjugated catechol amine metabolites
Assignee: Bayer Corp
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Filing: 1964-11-04
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Granted: 1966-02-22
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Expires: 1984-11-04
Abstract
No abstract record available.
Inventors
- 👤 Jeanne T Harvill
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 09:01
CPC Classifications
G; G01; G01N; G01N33/00; G01N33/48; G01N33/50; G01N33/52; Y; Y10; Y10T; Y10T436/00; Y10T436/17; Y10T436/173845
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
75 words
A PROCESS FOR THE DETECTION OF UNCONJUGATED CATECHOL AMINE METABOLITIES IN FLUIDS WHICH COMPRISES THE STEPS OF CONTACTING THE FLUID TO BE TESTED WITH AN ION EXCHANGE MEANS CAPABLE OF ADSORBING UNCONJUGATED CATECHOL AMINE METABOLITIES FROM A FLUID CONTAINING THE SAME; TREATING SAID ION EXCHANGE MEANS WITH A MILD ALKALIZING AGENT; AND ADDING TO SAID ION EXCHANGE MEANS A COLOR DEVELOPER WHICH EFFECTS A VISIBLE COLOR FORMATIONIN THE PRESENCE OF ABSORBED UNCONJUGATED CATECHOL AMINE METABOLITIES.
Claim 2
Dependent Claim
75 words
A PROCESS FOR THE DETECTION OF UNCONJUGATED CATECHOL AMINE METABOLITIES IN FLUIDS WHICH COMPRISES THE STEPS OF CONTACTING THE FLUID TO BE TESTED WITH AN ION EXCHANGE MEANS CAPABLE OF ADSORBING UNCONJUGATED CATECHOL AMINE METABOLITIES FROM A FLUID CONTAINING THE SAME; TREATING SAID ION EXCHANGE MEANS WITH A MILD ALKALIZING AGENT; AND ADDING TO SAID ION EXCHANGE MEANS A COLOR DEVELOPER WHICH EFFECTS A VISIBLE COLOR FORMATIONIN THE PRESENCE OF ABSORBED UNCONJUGATED CATECHOL AMINE METABOLITIES.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1969-02-21 | 1969-08-23 | 1970-02-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-02-21 | 1973-08-23 | 1974-02-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-02-21 | 1977-08-23 | 1978-02-22 | $7700.00 | Window Closed / Lapsed |