US3209255A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Electro-osmotic current integrator with capillary tube indicator
Assignee: Union Carbide Corp
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Filing: 1960-04-22
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Granted: 1965-09-28
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Expires: 1980-04-22
Abstract
No abstract record available.
Inventors
- 👤 Nelson N Estes
- 👤 George E Evans
- 👤 Fred L Granger
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 02:06
CPC Classifications
H; H01; H01G; H01G11/00; H01G11/02; G; G01; G01N; G01N27/00; G01N27/26; G01N27/416; G01N27/42; G01N27/423; G01R; G01R22/00; G01R22/02; H01G11/52; H01G11/78; H01G9/00; H01G9/22; Y; Y02; Y02E; Y02E60/00; Y02E60/13
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
100 words
AN ELECTRO-OSMOTIC INTEGRATOR COMPRISING A VESSEL FILLED WITH A POLAR LIQUID; A POROUS DISC DIVIDING SAID VESSEL INTO TWO COMPARTMENTS; A PAIR OF ELECTRODES IN CLOSE PROXIMITY TO SAID DISC. ONE OF SAID ELECTRODES BEING IN EACH OF SAID COMPARTMENTS; LEADS TO SAID ELECTRODES; A CAPILLARY TUBE FILLED WITH SAID POLAR LIQUID AND COMMUNICATING BETWEEN SAID COMPARTMENTS; AND INDICATOR MEANS MOVABLE WITH SAID POLAR LIQUID IN SAID CAPILLARY TUBE, SAID CAPILLARY TUBE BEING CALIBRATED IN ORDER TO RECORD THE MOVEMENT OF SAID INDICATOR MEANS WITH SAID POLAR LIQUID AND TO GIVE AN INDICATION OF A VOLTAGE APPLIED BETWEEN SAID ELECTRODES.
Claim 2
Dependent Claim
100 words
AN ELECTRO-OSMOTIC INTEGRATOR COMPRISING A VESSEL FILLED WITH A POLAR LIQUID; A POROUS DISC DIVIDING SAID VESSEL INTO TWO COMPARTMENTS; A PAIR OF ELECTRODES IN CLOSE PROXIMITY TO SAID DISC. ONE OF SAID ELECTRODES BEING IN EACH OF SAID COMPARTMENTS; LEADS TO SAID ELECTRODES; A CAPILLARY TUBE FILLED WITH SAID POLAR LIQUID AND COMMUNICATING BETWEEN SAID COMPARTMENTS; AND INDICATOR MEANS MOVABLE WITH SAID POLAR LIQUID IN SAID CAPILLARY TUBE, SAID CAPILLARY TUBE BEING CALIBRATED IN ORDER TO RECORD THE MOVEMENT OF SAID INDICATOR MEANS WITH SAID POLAR LIQUID AND TO GIVE AN INDICATION OF A VOLTAGE APPLIED BETWEEN SAID ELECTRODES.
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) | 1968-09-27 | 1969-03-29 | 1969-09-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-09-27 | 1973-03-29 | 1973-09-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-09-27 | 1977-03-29 | 1977-09-28 | $7700.00 | Window Closed / Lapsed |