US2990253A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Diagnostic composition
Assignee: Bayer Corp
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Filing: 1959-05-21
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Granted: 1961-06-27
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Expires: 1979-05-21
Abstract
No abstract record available.
Inventors
- 👤 Robert R Smeby
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 06:57
CPC Classifications
G; G01; G01N; G01N33/00; G01N33/48; G01N33/50; G01N33/64; Y; Y10; Y10T; Y10T436/00; Y10T436/20; Y10T436/200833; Y10T436/201666
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
58 words
A DIAGNOSTIC COMPOSITION FOR THE DETECTION OF KETONE BODIES IN BODY FLUIDS WHICH COMPRISES A BIBULOUS CARRIER IMPREGNATED WITH A SOLUTION COMPRISING SODIUM NITROPRUSSIDE, DISODIUM PHOSPHATE, MONOSODIUM PHOSPHATE, GLYCINE, A COMPOUND SELECTED FROM THE GROUP CONSISTING OF SODIUM CHLORIDE AND SODIUM ALGINATE AND COMPOUNDS SELECTED FROM THE GROUP CONSISTING OF 1,3-DIAMINO-2PROPANOL, 2-AMINO-2-METHYL-1,3-PROPANEDIOL, 2-(2-AMINOETHYLAMINO)ETHANOL, 3,3''-DIAMINODIPROPYLAMINE, DIETHANOLAMINE, 1,3-DIAMINOPROPANE AND 1,4-DIAMINOBUTANE.
Claim 2
Dependent Claim
58 words
A DIAGNOSTIC COMPOSITION FOR THE DETECTION OF KETONE BODIES IN BODY FLUIDS WHICH COMPRISES A BIBULOUS CARRIER IMPREGNATED WITH A SOLUTION COMPRISING SODIUM NITROPRUSSIDE, DISODIUM PHOSPHATE, MONOSODIUM PHOSPHATE, GLYCINE, A COMPOUND SELECTED FROM THE GROUP CONSISTING OF SODIUM CHLORIDE AND SODIUM ALGINATE AND COMPOUNDS SELECTED FROM THE GROUP CONSISTING OF 1,3-DIAMINO-2PROPANOL, 2-AMINO-2-METHYL-1,3-PROPANEDIOL, 2-(2-AMINOETHYLAMINO)ETHANOL, 3,3''-DIAMINODIPROPYLAMINE, DIETHANOLAMINE, 1,3-DIAMINOPROPANE AND 1,4-DIAMINOBUTANE.
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) | 1964-06-26 | 1964-12-26 | 1965-06-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1968-06-26 | 1968-12-26 | 1969-06-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1972-06-26 | 1972-12-26 | 1973-06-27 | $7700.00 | Window Closed / Lapsed |