US3224436A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Hypodermic apparatus for measuring hydrogen ion concentration of blood within a living body
Assignee: Honeywell Inc
•
Filing: 1961-04-10
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Granted: 1965-12-21
•
Expires: 1981-04-10
Abstract
No abstract record available.
Inventors
- 👤 Massena Robert A Le
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 21:12
CPC Classifications
A; A61; A61B; A61B5/00; A61B5/145; A61B5/14542; A61B5/14539; A61B5/1468; A61B5/1473; A61B5/68; A61B5/6846; A61B5/6847; A61B5/6848; A61B5/6849
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
169 words
A PH ELECTRODE ASSEMBLY COMPRISING A HYPODERMIC NEEDLE HAVING AN AXIAL BORE AND AN OPEN, POINTED END, A GLASS PH ELECTRODE DISPOSED WITHIN SAID NEEDLE BORE AND HAVING A TUBE PORTION TERMINATING IN SAID BORE ADJACENT SAID NEEDLE END, AN ELONGATED WINDOW THROUGH THE WALL OF SAID NEEDLE EXTENDING FROM ADJACENT SAID NEEDLE END PARALEL TO THE AXIS OF SAID NEEDLE, A SECTION OF SAID TUBE PORTION WHICH IS IN REGISTER WITH SAID WINDOW BEING ARRANGED TO CONSTITUTE A PH-SENSITIVE MEMBRANE, A REFERENCE ELEACTRODE DISPOSED WITHIN SAID NEEDLE BORE AND HAVING A TUBE PORTION TERMINATING AT SAID OPEN END OF SAID NEEDLE AND HAVING A RELATIVELY SMALL END OPENING IN REGISTER WITH SAID OPEN END OF SAID NEEDLE, A SEPARATE ELECTRODE MEMBER INDIVIDUAL TO EACH OF SAID ELECTRODES, LOCATED WITHIN THE CORRESPONDING ONE OF SAID TUBE PORTIONS ENTIRELY WITHIN SAID NEEDLE BORE, AND PROVIDED WITH AND ELECTRICAL LEAD CONNECTION, AN ELECTRICALLY CONDUCTIVE SUBSTANCE IN SAID TUBE PORTION OF SAID GLASS ELECTRODE BRIDGING BETWEEN THE CORRESPONDING ONE OF SAID ELECTRODE
Claim 2
Dependent Claim
169 words
A PH ELECTRODE ASSEMBLY COMPRISING A HYPODERMIC NEEDLE HAVING AN AXIAL BORE AND AN OPEN, POINTED END, A GLASS PH ELECTRODE DISPOSED WITHIN SAID NEEDLE BORE AND HAVING A TUBE PORTION TERMINATING IN SAID BORE ADJACENT SAID NEEDLE END, AN ELONGATED WINDOW THROUGH THE WALL OF SAID NEEDLE EXTENDING FROM ADJACENT SAID NEEDLE END PARALEL TO THE AXIS OF SAID NEEDLE, A SECTION OF SAID TUBE PORTION WHICH IS IN REGISTER WITH SAID WINDOW BEING ARRANGED TO CONSTITUTE A PH-SENSITIVE MEMBRANE, A REFERENCE ELEACTRODE DISPOSED WITHIN SAID NEEDLE BORE AND HAVING A TUBE PORTION TERMINATING AT SAID OPEN END OF SAID NEEDLE AND HAVING A RELATIVELY SMALL END OPENING IN REGISTER WITH SAID OPEN END OF SAID NEEDLE, A SEPARATE ELECTRODE MEMBER INDIVIDUAL TO EACH OF SAID ELECTRODES, LOCATED WITHIN THE CORRESPONDING ONE OF SAID TUBE PORTIONS ENTIRELY WITHIN SAID NEEDLE BORE, AND PROVIDED WITH AND ELECTRICAL LEAD CONNECTION, AN ELECTRICALLY CONDUCTIVE SUBSTANCE IN SAID TUBE PORTION OF SAID GLASS ELECTRODE BRIDGING BETWEEN THE CORRESPONDING ONE OF SAID ELECTRODE
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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) | 1968-12-20 | 1969-06-21 | 1969-12-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-12-20 | 1973-06-21 | 1973-12-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-12-20 | 1977-06-21 | 1977-12-21 | $7700.00 | Window Closed / Lapsed |