US2850359A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Testing unit and method of testing for glucose
Assignee: Worthington Biochemical Corp
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Filing: 1956-09-07
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Granted: 1958-09-02
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Expires: 1976-09-07
Abstract
No abstract record available.
Inventors
- 👤 Charles C Worthington
- 👤 Joseph D Teller
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 17:39
CPC Classifications
C; C12; C12Q; C12Q1/00; C12Q1/62; C12Q1/54
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
105 words
IN A METHOD OF TESTING FOR THE GLUCOSE CONTENT OF A URINE SAMPLE CONTAINING GLUCOSE AND URIC ACID BY COLORIMETRIC REACTION UTILIZING IN COMBINATION FOR REACTION WITH GLUCOSE IN SAID URINE THE REAGENTS GLUCOSE OXIDASE, PEROXIDASE AND A CHROMOGENIC OXYGEN ACCEPTOR REACTIVE WITH ATTENDANT COLOR CHANGE WITH OXYGEN PRODUCED BY REACTION OF GLUCOSE WITH SAID GLUCOSE OXIDASE IN THE PRESENCE OF SAID PEROXIDASE, THE STEP OF REMOVING THE URIC ACID CONTENT FROM SAID URINE SAMPLE BY ITS ADSORPTION ON AN ADSORBENT THEREFROM PRIOR TO CONTACTING SAID URINE SAMPLE WITH SAID REAGENTS, SAID ADSORBENT BEING SUBSTANTIALLY WITHOUT ADSORBENCY FOR THE GLUCOSE CONTAINED IN SAID URINE SAMPLE.
References Cited (Backward Citations)
US1321062A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1961-09-01 | 1962-03-03 | 1962-09-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-09-01 | 1966-03-03 | 1966-09-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-09-01 | 1970-03-03 | 1970-09-02 | $7700.00 | Window Closed / Lapsed |