Patent US4304010A successfully refreshed from Google Patents.
US3242729A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Electrolytic flowmeter
Assignee: Honeywell Inc
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Filing: 1963-06-17
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Granted: 1966-03-29
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Expires: 1983-06-17
Abstract
No abstract record available.
Inventors
- 👤 Roger P Keller
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 15:11
CPC Classifications
G; G01; G01F; G01F1/00; G01F1/56; G01F1/64
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
74 words
IN A SYSTEM FOR MEASURING THE RATE OF FLOW OF AN ELECTROLYTE: A FLUID FLOW CIRCUIT INCLUDING AN ELECTROLYTE HAVING A RATE OF FLOW WHICH IS TO BE MEASURED; THREE ELECTRODE MEANS EXPOSED TO SAID ELECTROLYTE; LOW VOLTAGE SOURCE MEANS CONNECTED BETWEEN A FIRST AND A SECOND OF SAID ELECTRODE MEANS TO CAUSE AT LEAST ONE OF SAID ELECTRODE MEANS TO BECOME POLARIZED; AND HIGH IMPEDANCE CURRENT MEASURING MEANS CONNECTED TO SAID THIRD ELECTRODE
Claim 2
Dependent Claim
74 words
IN A SYSTEM FOR MEASURING THE RATE OF FLOW OF AN ELECTROLYTE: A FLUID FLOW CIRCUIT INCLUDING AN ELECTROLYTE HAVING A RATE OF FLOW WHICH IS TO BE MEASURED; THREE ELECTRODE MEANS EXPOSED TO SAID ELECTROLYTE; LOW VOLTAGE SOURCE MEANS CONNECTED BETWEEN A FIRST AND A SECOND OF SAID ELECTRODE MEANS TO CAUSE AT LEAST ONE OF SAID ELECTRODE MEANS TO BECOME POLARIZED; AND HIGH IMPEDANCE CURRENT MEASURING MEANS CONNECTED TO SAID THIRD ELECTRODE
References Cited (Backward Citations)
US1441796A
Cited
US2773236A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1969-03-28 | 1969-09-27 | 1970-03-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-03-28 | 1973-09-27 | 1974-03-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-03-28 | 1977-09-27 | 1978-03-29 | $7700.00 | Window Closed / Lapsed |