US3431078A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Respiration measuring apparatus
Assignee: NIKKO KAGAKU KK
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Filing: 1966-10-27
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Granted: 1969-03-04
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Expires: 1986-10-27
Abstract
No abstract record available.
Inventors
- 👤 Yasutsugu Yokohama
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 22:15
CPC Classifications
G; G01; G01N; G01N7/00; G01N7/14; G01N7/18; G01N7/20
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
101 words
A RESPIRATION MEASURING APPARATUS COMPRISING A MAIN CAPILLARY TUBE PROVIDED WITH A SCALED CAPILLARY SECTION, A LIQUID RESERVOIR CONNECTED TO SCALED CAPILLARY TUBE, SAID RESERVOIR BEING PROVIDED WITH A COMPRESSION ADJUSTING MEANS, A FIRST BRANCH CAPILLARY TUBE BRANCHED FROM SAID MAIN CAPILLARY TUBE AND CONNECTED TO A REACTION VESEL, A SECOND BRANCH CAPILLARY TUBE BRANCHED FROM SAID MAIN CAPILLARY TUBE AT A POINT MORE REMOTE FROM SAID SCALED CAPILLARY SECTION THAN SAID FIRST BRANCH CAPILLARY TUBE, A CONTROL VESSEL CONNECTED TO SAID SECOND BRANCH CAPILLARY TUBE AND MEANS TO INTRODUCE A RELATIVELY SMALL QUANTITY OF LIQUID INTO SAID MAIN CAPILLARY TUBE.
Claim 2
Dependent Claim
101 words
A RESPIRATION MEASURING APPARATUS COMPRISING A MAIN CAPILLARY TUBE PROVIDED WITH A SCALED CAPILLARY SECTION, A LIQUID RESERVOIR CONNECTED TO SCALED CAPILLARY TUBE, SAID RESERVOIR BEING PROVIDED WITH A COMPRESSION ADJUSTING MEANS, A FIRST BRANCH CAPILLARY TUBE BRANCHED FROM SAID MAIN CAPILLARY TUBE AND CONNECTED TO A REACTION VESEL, A SECOND BRANCH CAPILLARY TUBE BRANCHED FROM SAID MAIN CAPILLARY TUBE AT A POINT MORE REMOTE FROM SAID SCALED CAPILLARY SECTION THAN SAID FIRST BRANCH CAPILLARY TUBE, A CONTROL VESSEL CONNECTED TO SAID SECOND BRANCH CAPILLARY TUBE AND MEANS TO INTRODUCE A RELATIVELY SMALL QUANTITY OF LIQUID INTO SAID MAIN CAPILLARY TUBE.
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) | 1972-03-03 | 1972-09-02 | 1973-03-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-03-03 | 1976-09-02 | 1977-03-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-03-03 | 1980-09-02 | 1981-03-04 | $7700.00 | Window Closed / Lapsed |