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Patent US3552207A successfully refreshed from Google Patents.
US3552207A
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US
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Methods and apparatus for continuously analysing liquids by microcalorimetric measurement of the thermal flow of the liquid
Assignee: Pfizer Health AB
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Filing: 1969-03-18
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Granted: 1971-01-05
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Expires: 1989-03-18
Abstract
Abstract A METHOD FOR CONTINUOUSLY ANALYZING LIQUID BY MICROCALORIMETRIC MEASUREMENT WHEREIN THE LIQUID IS CAUSED TO FLOW THROUGH A HEAT EXCHANGER ARRANGED IN HEAT EQUILLIBRIUM WITH A PAIR OF THERMOPILES. THE HEAT-EQUALIZED LIQUID IS THEN CAUSED TO FLOW THROUGH AN ELONGATED CHANNEL IN A MEASURING CELL IN THERMAL CONTACT WITH ONE OF THE THERMOPILES. VOLTAGE CHARGES DUE TO CHEMICAL AND PHYSICAL PROCESSES AD THE LIQUID PASSES THROUGH THE CELL ARE THEN MEASURED.
Inventors
- 👤 Paul Robin Monk
- 👤 Bertil Ingemar Wadso
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 09:13
CPC Classifications
G; G01; G01N; G01N25/00; G01N25/20; G01N25/48
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1974-01-04 | 1974-07-06 | 1975-01-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-01-04 | 1978-07-06 | 1979-01-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-01-04 | 1982-07-06 | 1983-01-05 | $7700.00 | Window Closed / Lapsed |