US3705013A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Analytical procedures and compositions therefor
Assignee: Xerox Corp
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Filing: 1970-01-05
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Granted: 1972-12-05
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Expires: 1990-01-05
Abstract
Abstract ANALYTICAL PROCEDURE FOR THE QUANTITATIVE DETERMINATION OF CREATININE IN BLOOD SERUM WHEREIN A NEUTRAL OR ALKALINE PH UP TO ABOUT 10.3, PREFERABLY ABOUT 9.5 TO ABOUT 10.3, IS DEVELOPED IN THE SAMPLE-REGENT BLANK PROCEDURE. A SIGNIFICANT ADVANTAGE OF THIS PH CONTROL TECHNIQUE IS THAT IT ELMINATES THE NEED FOR A PROTEIN-FREE FILTRATE.
Inventors
- 👤 Peter B Dewhurst
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 23:13
CPC Classifications
G; G01; G01N; G01N33/00; G01N33/48; G01N33/50; G01N33/70; Y; Y10; Y10T; Y10T436/00; Y10T436/10; Y10T436/14; Y10T436/145555; Y10T436/147777
Claims Analysis
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References Cited (Backward Citations)
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1975-12-05 | 1976-06-05 | 1976-12-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-12-05 | 1980-06-05 | 1980-12-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-12-05 | 1984-06-05 | 1984-12-05 | $7700.00 | Window Closed / Lapsed |