US3449162A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of making oxygen measuring cells
Assignee: Analytic Systems Co
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Filing: 1965-09-17
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Granted: 1969-06-10
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Expires: 1985-09-17
Abstract
No abstract record available.
Inventors
- 👤 Ramesh Chand
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 01:21
CPC Classifications
G; G01; G01N; G01N27/00; G01N27/26; G01N27/403; G01N27/404
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
86 words
A METHOD OF TREATING A METAL ELECTRODE OF AN ELECTROLYTIC CELL COMPRISING FORMING A FILM OF A SALT OF SAID METAL ON THE SURFACE OF SAID METAL ELECTRODE, SAID SALT HAVING THE PROPERTY THAT IT CAN BE DECOMPOSED TO ITS METALLIC SATE AT A TEMPERATURE LOWER THAN THE MELTING POINT OF THE SURFACE OF SAID METAL ELECTRODE, AND HEATING SAID DIPPED METAL ELECTRODE AT A TEMPERATURE ABOVE SAID DECOMPOSITION TEMPERATURE BUT BELOW SAID MELTING TEMPERATURE TO FORM A BEADED METAL LAYER ON SAID MEAL ELECTRODE SURFACE.
Claim 2
Independent Claim
86 words
A METHOD OF TREATING A METAL ELECTRODE OF AN ELECTROLYTIC CELL COMPRISING FORMING A FILM OF A SALT OF SAID METAL ON THE SURFACE OF SAID METAL ELECTRODE, SAID SALT HAVING THE PROPERTY THAT IT CAN BE DECOMPOSED TO ITS METALLIC SATE AT A TEMPERATURE LOWER THAN THE MELTING POINT OF THE SURFACE OF SAID METAL ELECTRODE, AND HEATING SAID DIPPED METAL ELECTRODE AT A TEMPERATURE ABOVE SAID DECOMPOSITION TEMPERATURE BUT BELOW SAID MELTING TEMPERATURE TO FORM A BEADED METAL LAYER ON SAID MEAL ELECTRODE SURFACE.
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) | 1972-06-09 | 1972-12-09 | 1973-06-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-06-09 | 1976-12-09 | 1977-06-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-06-09 | 1980-12-09 | 1981-06-10 | $7700.00 | Window Closed / Lapsed |