US3814668A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method and device for the semi-quantitative determination of glucose in aqueous fluids
Assignee: Bayer Corp
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Filing: 1969-10-15
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Granted: 1974-06-04
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Expires: 1989-10-15
Abstract
Abstract Improved method and device for the semi-quantitative determination of glucose in aqueous fluids such as urine comprising glucose oxidase, a water soluble iodide salt, and a substance having peroxidative activity. The composition is incorporated with a carrier member therefor and/or a semi-permeable membrane such as ethylcellulose. A preferable embodiment of the present invention comprises the inclusion of a background coloring material such as brilliant blue FCF in the test composition.
Inventors
- 👤 W Hendershot
- 👤 L Johnson
- 👤 K Blake
- 👤 B Haden
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 04:45
CPC Classifications
C; C12; C12Q; C12Q1/00; C12Q1/54; Y; Y10; Y10S; Y10S435/00; Y10S435/805
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1977-06-03 | 1977-12-03 | 1978-06-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-06-03 | 1981-12-03 | 1982-06-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-06-03 | 1985-12-03 | 1986-06-04 | $7700.00 | Window Closed / Lapsed |