Patent US220965A successfully refreshed from Google Patents.
Patent US3129160A successfully refreshed from Google Patents.
US3129160A
Expired / Lapsed
US
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Desensitized glass membrane and the method and composition for producing the same
Assignee: Beckman Coulter Inc
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Filing: 1962-04-25
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Granted: 1964-04-14
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Expires: 1982-04-25
Abstract
No abstract record available.
Inventors
- 👤 Norman W Carter
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 15:28
CPC Classifications
C; C03; C03C; C03C21/00; C03C21/007; C03C21/001; C03C21/005; G; G01; G01N; G01N27/00; G01N27/26; G01N27/28; G01N27/30; G01N27/36
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
79 words
THE METHOD OF DESENSITIZING SELECTED AREAS OF CATION SENSITIVE GLASS ELECTRODES SO AS TO INHIBIT SENSITIVITY IN SAID SELECTED AREAS INCLUDING, CONTACTING THE SELECTED AREA WITH A SUBSTANCE, SAID SUBSTANCE HAVING AT LEAST ONE OF THE SALTS SELECTED FROM THE GROUP CONSISTING OF SILVER AND COPPER SALTS, AND HEATING AT LEAST THE SELECTED AREA WHILE IN CONTACT WITH THE SUBSTANCE TO APPROXIMATELY THE ANNEALING TEMPERATURE OF THE GLASS FOR A PERIOD OF TIME NOT LESS THAN APPROXIMATELY 10 MINUTES.
Claim 2
Independent Claim
79 words
THE METHOD OF DESENSITIZING SELECTED AREAS OF CATION SENSITIVE GLASS ELECTRODES SO AS TO INHIBIT SENSITIVITY IN SAID SELECTED AREAS INCLUDING, CONTACTING THE SELECTED AREA WITH A SUBSTANCE, SAID SUBSTANCE HAVING AT LEAST ONE OF THE SALTS SELECTED FROM THE GROUP CONSISTING OF SILVER AND COPPER SALTS, AND HEATING AT LEAST THE SELECTED AREA WHILE IN CONTACT WITH THE SUBSTANCE TO APPROXIMATELY THE ANNEALING TEMPERATURE OF THE GLASS FOR A PERIOD OF TIME NOT LESS THAN APPROXIMATELY 10 MINUTES.
References Cited (Backward Citations)
US2117596A
Cited
US2366489A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1967-04-14 | 1967-10-14 | 1968-04-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-04-14 | 1971-10-14 | 1972-04-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-04-14 | 1975-10-14 | 1976-04-14 | $7700.00 | Window Closed / Lapsed |