US3305457A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Hydrocarbon detection
Assignee: Individual
•
Filing: 1965-08-09
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Granted: 1967-02-21
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Expires: 1985-08-09
Abstract
No abstract record available.
Inventors
- 👤 Hyman Edward Sidney
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 05:53
CPC Classifications
G; G01; G01N; G01N27/00; G01N27/26; G01N27/28; G01N27/30
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
67 words
A METHOD OF MANUFACTURING AN ELECTRODE WHICH IS SENSITIVE TO HYDROCARBONS WHICH COMPRISES ELECTROLYTICALLY COPRECIPITATING ZINC AND A PLATINUM METAL ON THE SURFACE OF A PLATINUM METAL ELECTRODE BY PASSING AN ELECTRIC CURRENT THROUGH SAID PLATINUM METAL ELECTRODE WHILE IN CONTACT WITH AN ELECTROLYTE CONTAINING DISSOLVED CATIONIC ZINC AND PLATINUM IN SUCH ANNER THAT SAID PLATINUM METAL ELECTRODE IS THE CATHODE AND REMOVING ZINC FROM SAID ELECTRODE.
Claim 2
Independent Claim
67 words
A METHOD OF MANUFACTURING AN ELECTRODE WHICH IS SENSITIVE TO HYDROCARBONS WHICH COMPRISES ELECTROLYTICALLY COPRECIPITATING ZINC AND A PLATINUM METAL ON THE SURFACE OF A PLATINUM METAL ELECTRODE BY PASSING AN ELECTRIC CURRENT THROUGH SAID PLATINUM METAL ELECTRODE WHILE IN CONTACT WITH AN ELECTROLYTE CONTAINING DISSOLVED CATIONIC ZINC AND PLATINUM IN SUCH ANNER THAT SAID PLATINUM METAL ELECTRODE IS THE CATHODE AND REMOVING ZINC FROM SAID ELECTRODE.
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) | 1970-02-20 | 1970-08-22 | 1971-02-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-02-20 | 1974-08-22 | 1975-02-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-02-20 | 1978-08-22 | 1979-02-21 | $7700.00 | Window Closed / Lapsed |