US3048475A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method and diagnostic composition of detecting phenylketones
Assignee: Bayer Corp
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Filing: 1958-06-16
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Granted: 1962-08-07
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Expires: 1978-06-16
Abstract
No abstract record available.
Inventors
- 👤 Chauncey O Rupe
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 20:00
CPC Classifications
G; G01; G01N; G01N33/00; G01N33/48; G01N33/50; G01N33/64; Y; Y10; Y10T; Y10T436/00; Y10T436/20; Y10T436/200833
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
70 words
A METHOD OF DETECTING PHENYLKETONES IN A BODY FLUID WHICH COMPRISES INTRODUCING INTO SAID LIQUID A DIAGNOSTIC COMPOSITION CONSISTING OF A BIBULOUS CARRIER WHICH HAS BEEN IMPREGNATED UPON AT LEAST A PORTION THEREOF WITH A SOLUTION WHICH CONSISTS ESSENTIALLY OF ABOUT 5.8 WT. PERCENT OF FERRIC AMMONIUM SULFATE, ABOUT 4.3 WT. PERCENT OF CYCLOHEXYLSULFAMIC ACID AND ABOUT 13.3 WT. PERCENT OF MAGNESIUM SULFATE, SAID SOLUTION HAVING A PH OF 1.8.
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) | 1965-08-06 | 1966-02-05 | 1966-08-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-08-06 | 1970-02-05 | 1970-08-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-08-06 | 1974-02-05 | 1974-08-07 | $7700.00 | Window Closed / Lapsed |