Patent US2600975A successfully refreshed from Google Patents.
Patent US3012976A successfully refreshed from Google Patents.
US3012976A
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Specific test composition for occult blood
Assignee: Bayer Corp
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Filing: 1959-11-02
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Granted: 1961-12-12
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Expires: 1979-11-02
Abstract
No abstract record available.
Inventors
- 👤 Jr Ernest C Adams
- 👤 James A Peterson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 22:10
CPC Classifications
G; G01; G01N; G01N33/00; G01N33/48; G01N33/50; G01N33/72; G01N33/721; G01N33/726; G01N33/725; Y; Y10; Y10S; Y10S436/00; Y10S436/904
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
94 words
A TEST COMPOSITION IN DRY SOLID FORM FOR THE DETECTION OF BLOOD WHICH COMPRISES AN ORGANIC HYDROPEROXIDE SELECTED FROM THE GROUP CONSISTING OF CUMENE HYDROPEROXIDE, DIISOPROPYLBENZENE HYDROPEROXIDE AND PARAMENTHANE HYDROPEROXIDE, AN INDICATOR SELECTED FROM THE GROUP CONSISTING OF THE DERIVATIVES OF ANILINE WHICH ARE CAPABLE OF ACCEPTING THE CATALYTIC TRANSFER OF OXYGEN FROM THE SAID HYDROPEROXIDE BY MEANS OF THE PROSTHETIC GROUP OF HEMOGLOBIN AND THEREBY BECOMING OXIDIZED TO ITS COLORED FORM, AND A BUFFER FOR MAINTAINING THE PH OF THE MATERIAL BEING TESTED TO ONE WITHIN A RANGE OF FROM 4 TO 7.
References Cited (Backward Citations)
US2838377A
Cited
US2773906A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1964-12-11 | 1965-06-12 | 1965-12-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1968-12-11 | 1969-06-12 | 1969-12-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1972-12-11 | 1973-06-12 | 1973-12-12 | $7700.00 | Window Closed / Lapsed |