US2633410A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method and means of detecting albumin and globulin in urine and other body liquids
Assignee: Denver Chemical Manufacturing Co
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Filing: 1949-04-13
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Granted: 1953-03-31
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Expires: 1969-04-13
Abstract
No abstract record available.
Inventors
- 👤 Beckley John Henry
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 05:04
CPC Classifications
G; G01; G01N; G01N33/00; G01N33/48; G01N33/50; G01N33/68; G01N33/6803; G01N33/6827; G01N33/52; G01N33/528
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
61 words
THE METHOD OF TESTING FOR THE PRESENCE OF ALBUMIN IN URINE AND OTHER BODY LIQUIDS WHICH CONSISTS IN PASSING A QUANTITY OF A SPECIMEN TO BE TESTED IN A SINGLE STEP SUCCESSIVELY THROUGH AN ACIDIFYING MEDIUM SELECTED FROM THE GROUP CONSISTING OF ORGANIC ACIDS AND THEIR ANHYDRIDES, A FILTERING MEDIUM AND OVER AN ALBUMIN PRECIPITATING MEDIUM, COLLECTING THE FILTRATE AFTER IT
Claim 2
Independent Claim
61 words
THE METHOD OF TESTING FOR THE PRESENCE OF ALBUMIN IN URINE AND OTHER BODY LIQUIDS WHICH CONSISTS IN PASSING A QUANTITY OF A SPECIMEN TO BE TESTED IN A SINGLE STEP SUCCESSIVELY THROUGH AN ACIDIFYING MEDIUM SELECTED FROM THE GROUP CONSISTING OF ORGANIC ACIDS AND THEIR ANHYDRIDES, A FILTERING MEDIUM AND OVER AN ALBUMIN PRECIPITATING MEDIUM, COLLECTING THE FILTRATE AFTER IT
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) | 1956-03-30 | 1956-09-29 | 1957-03-31 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1960-03-30 | 1960-09-29 | 1961-03-31 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1964-03-30 | 1964-09-29 | 1965-03-31 | $7700.00 | Window Closed / Lapsed |