US3283240A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Electrical conductivity cell and measuring apparatus
Assignee: Honeywell Inc
•
Filing: 1962-10-22
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Granted: 1966-11-01
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Expires: 1982-10-22
Abstract
No abstract record available.
Inventors
- 👤 Richard J Spady
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 14:15
CPC Classifications
G; G01; G01N; G01N27/00; G01N27/02; G01N27/04; G01N27/045; G01N27/046; G01N27/06; G01N27/07
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
88 words
APPARATUS FOR MEASURING THE ELECTRICAL CONDUCTIVITY OF A SUBSTANCE, COMPRISING A CELL HAVING A PAIR OF ENERGIZING ELECTRODES AND A PAIR OF OUTPUT ELECTRODES, SAID ELECTRODES BEING ARRANGED TO CONTACT SAID SUBSTANCE, AN AMPLIFIER HAVING AN INPUT CONNECTED TO SAID OUTPUT ELECTRODES AND HAVING AN OUTPUT, MECHANICALLY ADJUSTABLE VOLTAGE VARYING MEANS CONNECTED BETWEEN A SOURCE OF VOLTAGE AND SAID ENERGIZING ELECTRODES TO APPLY TO SAID ENERGIZING ELECTRODES AN ADJUSTABLE PERCENTAGE OF THE VOLTAGE OF SAID SOURCE, SAID VOLTAGE VARYING MEANS INCLUDING AN ADJUSTABLE MEMBER THE ADJUSTMENT OF WHICH
References Cited (Backward Citations)
US2470153A
Cited
US2854626A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1969-10-31 | 1970-05-02 | 1970-11-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-10-31 | 1974-05-02 | 1974-11-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-10-31 | 1978-05-02 | 1978-11-01 | $7700.00 | Window Closed / Lapsed |