US2797149A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Methods of and apparatus for analyzing liquids containing crystalloid and non-crystalloid constituents
Assignee: Technicon International Ltd
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Filing: 1953-01-08
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Granted: 1957-06-25
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Expires: 1973-01-08
Abstract
No abstract record available.
Inventors
- 👤 Leonard T Skeggs
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-22 16:37
CPC Classifications
F; F04; F04B; F04B43/00; F04B43/08; F04B43/082; G; G01; G01N; G01N35/00; G01N35/08; Y; Y10; Y10S; Y10S435/00; Y10S435/808; Y10T; Y10T436/00; Y10T436/11; Y10T436/117497; Y10T436/118339; Y10T436/14; Y10T436/142222; Y10T436/143333; Y10T436/144444; Y10T436/17; Y10T436/171538; Y10T436/173845; Y10T436/175383
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
131 words
THE METHOD OF OBTAINING A QUANTATIVE INDICATION OF A CRYSTALLOID SUBSTANCE IN A LIQUID WHICH ALSO CONTAINS A NON-CRYSTALLOID CONSTITUENT, COMPRISING FORMING A STREM CONTAINING SAID LIQUID AND FLOWING SAID STREAM PAST A SEPARATING ZONE, SEPARTING IN SAID ZONE FROM SAID STREAM AND NON-CRYSTALLOID CONSTITUENT THEREOF A PORTION OF THE CRYSTALLOID SUBSTANCE IN PORPORTION TO THE CONCENTRATION THEREOF IN SAID LIQUID,FORMING A SECOND LIQUID INTO A STREAM AND FLOWING IT CONCURRENTLY WITH THE FIRST MENTIONED STREAM IN A PATH TO INTERCEPT AND MIX WITH THE SEPARATED PORTION OF SAID CRYSTALLOID SUBSTANCE SAID SECOND LIQUID COMPRISING A REAGENT CAPABLE OF REACTING WITH SAID CRYSTALLOID SUBSTANCE TO PRODUCE A COLOR CHANGE IN THE LIQUID, FLOWING THE SAID SECOND LIQUID CONTAINING THE CRYSTALLOID SUBSTANCE TO AN ANALYZING ZONE IN THE PATH OF FLOW THEREOF,
Claim 2
Independent Claim
131 words
THE METHOD OF OBTAINING A QUANTATIVE INDICATION OF A CRYSTALLOID SUBSTANCE IN A LIQUID WHICH ALSO CONTAINS A NON-CRYSTALLOID CONSTITUENT, COMPRISING FORMING A STREM CONTAINING SAID LIQUID AND FLOWING SAID STREAM PAST A SEPARATING ZONE, SEPARTING IN SAID ZONE FROM SAID STREAM AND NON-CRYSTALLOID CONSTITUENT THEREOF A PORTION OF THE CRYSTALLOID SUBSTANCE IN PORPORTION TO THE CONCENTRATION THEREOF IN SAID LIQUID,FORMING A SECOND LIQUID INTO A STREAM AND FLOWING IT CONCURRENTLY WITH THE FIRST MENTIONED STREAM IN A PATH TO INTERCEPT AND MIX WITH THE SEPARATED PORTION OF SAID CRYSTALLOID SUBSTANCE SAID SECOND LIQUID COMPRISING A REAGENT CAPABLE OF REACTING WITH SAID CRYSTALLOID SUBSTANCE TO PRODUCE A COLOR CHANGE IN THE LIQUID, FLOWING THE SAID SECOND LIQUID CONTAINING THE CRYSTALLOID SUBSTANCE TO AN ANALYZING ZONE IN THE PATH OF FLOW THEREOF,
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1960-06-24 | 1960-12-24 | 1961-06-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1964-06-24 | 1964-12-24 | 1965-06-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1968-06-24 | 1968-12-24 | 1969-06-25 | $7700.00 | Window Closed / Lapsed |