US2614976A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Electrode for determining cationic activity
Assignee: Gulf Research and Development Co
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Filing: 1951-10-19
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Granted: 1952-10-21
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Expires: 1971-10-19
Abstract
No abstract record available.
Inventors
- 👤 Homer W Patnode
- 👤 Malcolm R J Wyllie
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 15:23
CPC Classifications
C; C08; C08J; C08J5/00; C08J5/20; C08J5/22; C08J5/2206; C08J5/2275; G; G01; G01N; G01N27/00; G01N27/26; G01N27/28; G01N27/30; G01N27/333; G01N27/3335; Y; Y10; Y10S; Y10S65/00; Y10S65/06
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
64 words
AN ELECTRODE COMPRISING A MEMBRANE OF A CHEMICALLY-INERT ELECTRICALLY-INSULATING MOLDABLE PLASTIC CARRYING UNIFORMLY DISSEMINATED THROUGHOUT THE BODY THEREOF FROM 5 PER CENT TO 30 PER CENT OF A FINELY-DIVIDED CATIONIC-EXCHANGE MATERIAL, SAID MEMBRANE FORMING AT LEAST A PART OF THE WALL OF AN INERT INSULATING CONTAINER, AN ELECTROLYTE IN SAID CONTAINER AND IN CONTACT WITH SAID MEMBRANE, AND MEANS FOR ELECTRICALLY CONTACTING SAID ELELCTROLYTE.
Claim 2
Dependent Claim
64 words
AN ELECTRODE COMPRISING A MEMBRANE OF A CHEMICALLY-INERT ELECTRICALLY-INSULATING MOLDABLE PLASTIC CARRYING UNIFORMLY DISSEMINATED THROUGHOUT THE BODY THEREOF FROM 5 PER CENT TO 30 PER CENT OF A FINELY-DIVIDED CATIONIC-EXCHANGE MATERIAL, SAID MEMBRANE FORMING AT LEAST A PART OF THE WALL OF AN INERT INSULATING CONTAINER, AN ELECTROLYTE IN SAID CONTAINER AND IN CONTACT WITH SAID MEMBRANE, AND MEANS FOR ELECTRICALLY CONTACTING SAID ELELCTROLYTE.
Claim 3
Dependent Claim
40 words
A CATION EXCHANGING MEMBRANE COMPRISING 80 PER CENT TO 50 PER CENT BY WEIGHT OF A FINELY-DIVIDED WATER-INSOLUBLE SULFONATE PHENOLIC FORMALDEHYDE CATION-EXCHANGE RESIN SUBSTANTIALLY UNIFORMLY DISTRIBUTED THROUGHOUT AND BONDED TOGETHER WITH POLYSTYRENE WHICH FORMS SUBSTANTIALLY THE REMAINDER OF THE COMPOSITION.
Claim 4
Dependent Claim
40 words
A CATION EXCHANGING MEMBRANE COMPRISING 80 PER CENT TO 50 PER CENT BY WEIGHT OF A FINELY-DIVIDED WATER-INSOLUBLE SULFONATE PHENOLIC FORMALDEHYDE CATION-EXCHANGE RESIN SUBSTANTIALLY UNIFORMLY DISTRIBUTED THROUGHOUT AND BONDED TOGETHER WITH POLYSTYRENE WHICH FORMS SUBSTANTIALLY THE REMAINDER OF THE COMPOSITION.
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Cited
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Cited
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Cited
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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) | 1955-10-21 | 1956-04-21 | 1956-10-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1959-10-21 | 1960-04-21 | 1960-10-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1963-10-21 | 1964-04-21 | 1964-10-21 | $7700.00 | Window Closed / Lapsed |