US2563062A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Electrostatic shield for ph electrodes
Assignee: Leeds and Northrup Co
•
Filing: 1947-01-07
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Granted: 1951-08-07
•
Expires: 1967-01-07
Abstract
No abstract record available.
Inventors
- 👤 George A Perley
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 14:29
CPC Classifications
G; G01; G01N; G01N27/00; G01N27/26; G01N27/28; G01N27/283
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
121 words
THE COMBINATION WITH AN ELECTRODE COMPRISING AN ELONGATED SUPPORTING STEM OF INSULATING MATERIAL, AN ION-RESPONSIVE MEMBRANE CARRIED BY ONE END OF SAID STEM FOR IMMERSION IS A LIQUID AND MEANS INCLUDING A SHIELDED CONDUCTOR FOR COMPLETING AN ELECTRICAL CIRCUIT TO THE INNER SURFACE OF SAID MEMBRANE, OF ELECTROSTATIC SHIELDING MEANS AT THE SAME ELECTRICAL POTENTIAL AS THE LIQUID IN WHICH SAID MEMBRANE IS TO BE IMMERSED AND INSULATED FROM SAID SHIELDED CONDUCTOR COMPRISING AN ELECTRONIC CONDUCTOR OF TUBULAR SHAPE ENCIRCLING THE OUTER SURFACE OF SAID STEM AND EXTENDING LENGTHWISE THEREOF FROM A REGION ADJACENT SAID MEMBRANE NORMALLY DISPOSED AT A SUBSURFACE LEVEL OF THE LIQUID UPON IMMERSION OF SAID MEMBRANE THEREIN TO A REGION ADJACENT THE OPPOSITE END OF SAID STEM.
Claim 2
Dependent Claim
121 words
THE COMBINATION WITH AN ELECTRODE COMPRISING AN ELONGATED SUPPORTING STEM OF INSULATING MATERIAL, AN ION-RESPONSIVE MEMBRANE CARRIED BY ONE END OF SAID STEM FOR IMMERSION IS A LIQUID AND MEANS INCLUDING A SHIELDED CONDUCTOR FOR COMPLETING AN ELECTRICAL CIRCUIT TO THE INNER SURFACE OF SAID MEMBRANE, OF ELECTROSTATIC SHIELDING MEANS AT THE SAME ELECTRICAL POTENTIAL AS THE LIQUID IN WHICH SAID MEMBRANE IS TO BE IMMERSED AND INSULATED FROM SAID SHIELDED CONDUCTOR COMPRISING AN ELECTRONIC CONDUCTOR OF TUBULAR SHAPE ENCIRCLING THE OUTER SURFACE OF SAID STEM AND EXTENDING LENGTHWISE THEREOF FROM A REGION ADJACENT SAID MEMBRANE NORMALLY DISPOSED AT A SUBSURFACE LEVEL OF THE LIQUID UPON IMMERSION OF SAID MEMBRANE THEREIN TO A REGION ADJACENT THE OPPOSITE END OF SAID STEM.
References Cited (Backward Citations)
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Cited
US2256733A
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US2311977A
Cited
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Cited
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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) | 1954-08-06 | 1955-02-05 | 1955-08-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1958-08-06 | 1959-02-05 | 1959-08-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1962-08-06 | 1963-02-05 | 1963-08-07 | $7700.00 | Window Closed / Lapsed |