US3095277A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Diagnostic composition
Assignee: Bayer Corp
•
Filing: 1958-03-25
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Granted: 1963-06-25
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Expires: 1978-03-25
Abstract
No abstract record available.
Inventors
- 👤 Alfred H Free
- 👤 Kercher Mary Lou
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 19:31
CPC Classifications
G; G01; G01N; G01N33/00; G01N33/48; G01N33/50; G01N33/68; G01N33/6803; G01N33/6827; G01N33/6839
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
125 words
AN INDICATOR BODY FOR USE IN DETERMINING ALBUMIN IN LIQUIDS, COMPRISING A DRY BIBULOUS CARRIER INCORPORATING THE SOLIDS REMAINING FROM A PREVIOUS IMPREGNATION WITH A SOLUTION OF AN INDICATOR DYE WHICH EXHIBITS PROTEIN ERROR AND A SOLID ACID REACTING MATERIAL, SAID DYE BEING PRESENT IN SAID SOLUTION TO THE EXTENT OF BETWEEN ABOUT 0.005% AND ABOUT 0.30% BY WEIGHT, AND SAID ACID REACTING MATERIAL BEING PRESENT IN SAID SOLUTION TO THE EXTENT OF BETWEEN ABOUT 0.5% AND ABOUT 25% BY WEIGHT AND IN AN AMOUNT EFFECTIVE, WHEN SAID BODY IS WETTED WITH THE LIQUID BEING TESTED, TO BUFFER SAID CARRIER AND DYE AT A POINT ADJACENT TO, BUT ON THE ACID SIDE OF, THE PH AT WHICH THE COLOR CHANGE OF SAID DYE NORMALLY OCCURS.
Claim 2
Dependent Claim
125 words
AN INDICATOR BODY FOR USE IN DETERMINING ALBUMIN IN LIQUIDS, COMPRISING A DRY BIBULOUS CARRIER INCORPORATING THE SOLIDS REMAINING FROM A PREVIOUS IMPREGNATION WITH A SOLUTION OF AN INDICATOR DYE WHICH EXHIBITS PROTEIN ERROR AND A SOLID ACID REACTING MATERIAL, SAID DYE BEING PRESENT IN SAID SOLUTION TO THE EXTENT OF BETWEEN ABOUT 0.005% AND ABOUT 0.30% BY WEIGHT, AND SAID ACID REACTING MATERIAL BEING PRESENT IN SAID SOLUTION TO THE EXTENT OF BETWEEN ABOUT 0.5% AND ABOUT 25% BY WEIGHT AND IN AN AMOUNT EFFECTIVE, WHEN SAID BODY IS WETTED WITH THE LIQUID BEING TESTED, TO BUFFER SAID CARRIER AND DYE AT A POINT ADJACENT TO, BUT ON THE ACID SIDE OF, THE PH AT WHICH THE COLOR CHANGE OF SAID DYE NORMALLY OCCURS.
References Cited (Backward Citations)
US2178550A
Cited
US2848308A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1966-06-24 | 1966-12-24 | 1967-06-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-06-24 | 1970-12-24 | 1971-06-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-06-24 | 1974-12-24 | 1975-06-25 | $7700.00 | Window Closed / Lapsed |