US2865718A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Urine sugar testing
Assignee: Chicago Dietetic Supply House Inc
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Filing: 1955-01-13
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Granted: 1958-12-23
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Expires: 1975-01-13
Abstract
No abstract record available.
Inventors
- 👤 William M Fowler
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 05:54
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: 2
Claim 1
Independent Claim
79 words
IN THE TESTING OF AN AQUEOUS SPECIMEN FOR SUGAR CONTENT WHEREIN THE SPECIMEN IS HEATED IN THE PRESENCE OF A WATER-SOLUBLE CUPRIC SALT AT AN ALKALINE PH TO FORM CUPROUS OXIDE IN PROPORTION TO THE REDUCEING SUGAR CONTENT, THE IMPROVEMENT COMPRISING INTRODUCING INTO SAID SPECIMEN DURING SAID TESTING A SOLID ALKALI METAL ALCOHOLATE, AND REGULATING THE AMOUNT OF SAID ALCOHOLATE THUS INTRODUCED TO GENERATE SUFFICIENT HEAT BY REACTION WITH THE WATER IN SAID SPECIMEN TO FORM SAID CUPROUS OXIDE.
Claim 2
Dependent Claim
79 words
IN THE TESTING OF AN AQUEOUS SPECIMEN FOR SUGAR CONTENT WHEREIN THE SPECIMEN IS HEATED IN THE PRESENCE OF A WATER-SOLUBLE CUPRIC SALT AT AN ALKALINE PH TO FORM CUPROUS OXIDE IN PROPORTION TO THE REDUCEING SUGAR CONTENT, THE IMPROVEMENT COMPRISING INTRODUCING INTO SAID SPECIMEN DURING SAID TESTING A SOLID ALKALI METAL ALCOHOLATE, AND REGULATING THE AMOUNT OF SAID ALCOHOLATE THUS INTRODUCED TO GENERATE SUFFICIENT HEAT BY REACTION WITH THE WATER IN SAID SPECIMEN TO FORM SAID CUPROUS OXIDE.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1961-12-22 | 1962-06-23 | 1962-12-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-12-22 | 1966-06-23 | 1966-12-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-12-22 | 1970-06-23 | 1970-12-23 | $7700.00 | Window Closed / Lapsed |