Patent US2990338A successfully refreshed from Google Patents.
US2990338A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Composition for determination of glucose in body fluids
Assignee: Individual
•
Filing: 1959-11-24
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Granted: 1961-06-27
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Expires: 1979-11-24
Abstract
No abstract record available.
Inventors
- 👤 Gibson Jacob John
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 20:28
CPC Classifications
C; C12; C12Q; C12Q1/00; C12Q1/54
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
58 words
A COLOR CHANGING COMPOSITION FOR COLORIMETRIC DETECTION AND MEASUREMENT OF GLUCOSE COMPRISING AN OXIDIZABLE CHROMOGENIC MATERIAL, AN ENZYME WHICH ACTS ON GLUCOSE TO PRODUCE AN OXIDIZING AGENT CAPABLE OF OXIDIZING THE CHROMOGENIC MATERIAL AND CHANGING ITS COLOR AND A LOWER ALKYLENE POLYAMINO POLY LOWER CARBOXYLIC ACID COMPOUND SEQUESTRANT WHICH INHIBITS DETERIORATION OF CHROMOGEN IN THE COMPOSITION BEFORE USE.
Claim 2
Dependent Claim
58 words
A COLOR CHANGING COMPOSITION FOR COLORIMETRIC DETECTION AND MEASUREMENT OF GLUCOSE COMPRISING AN OXIDIZABLE CHROMOGENIC MATERIAL, AN ENZYME WHICH ACTS ON GLUCOSE TO PRODUCE AN OXIDIZING AGENT CAPABLE OF OXIDIZING THE CHROMOGENIC MATERIAL AND CHANGING ITS COLOR AND A LOWER ALKYLENE POLYAMINO POLY LOWER CARBOXYLIC ACID COMPOUND SEQUESTRANT WHICH INHIBITS DETERIORATION OF CHROMOGEN IN THE COMPOSITION BEFORE USE.
References Cited (Backward Citations)
US2864844A
Cited
US2848308A
Cited
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 |