US2659700A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Composition for testing for glucose in biological fluids
Assignee: Individual
•
Filing: 1952-01-23
•
Granted: 1953-11-17
•
Expires: 1972-01-23
Abstract
No abstract record available.
Inventors
- 👤 Richard M Carson
- 👤 Reuben R Saeks
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 01:20
CPC Classifications
G; G01; G01N; G01N33/00; G01N33/48; G01N33/50; G01N33/66; Y; Y10; Y10T; Y10T436/00; Y10T436/14; Y10T436/142222; Y10T436/143333; Y10T436/144444
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
78 words
A DRY REAGENT FOR DETERMINING THE PRESENCE AND PROPORTION OF GLUCOSE IN BIOLOGICAL FLUIDS BY A MARKED CHANGE OF COLOR OF THE REAGENT WITHIN PREDETERMINED PERIODS OF TIME AND WITHOUT THE APPLICATION OF EXTERNAL HEAT COMPRISING A DRY ALKALI METAL MANGANATE AND A DRY SOLUBLE ALKALI STABILIZER SELECTED FROM THE GROUP CONSISTING OF SODIUM ALUMINATE AND POTASSIUM ALUMINATE, THE ALKALI METAL MANGANATE BEING IN THE PROPORTION OF BETWEEN APPROXIMATELY .66% AND 20% BY WEIGHT OF THE ALKALI STABILIZER.
References Cited (Backward Citations)
US2608533A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1956-11-16 | 1957-05-18 | 1957-11-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1960-11-16 | 1961-05-18 | 1961-11-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1964-11-16 | 1965-05-18 | 1965-11-17 | $7700.00 | Window Closed / Lapsed |