Patent US1101821A successfully refreshed from Google Patents.
US2680060A
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Ultramicrogasometer for determining gases in body fluids
Assignee: Kopp Scientific Inc
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Filing: 1951-08-21
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Granted: 1954-06-01
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Expires: 1971-08-21
Abstract
No abstract record available.
Inventors
- 👤 Natelson Samuel
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-22 16:38
CPC Classifications
G; G01; G01N; G01N7/00; G01N7/14; Y; Y10; Y10S; Y10S285/00; Y10S285/911; Y10T; Y10T137/00; Y10T137/2931; Y10T137/2937
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
116 words
APPARATUS FOR DETERMINING MINUTE QUANTITIES OF GASES IN MINUTE QUANTITIES OF BODY FLUIDS CONSISTING ESSENTIALLY OF A BASE, A BARREL MOUNTED ON SAID BASE, A PLUNGER IN SAID BARREL AND MEANS FOR ADVANCING AND RETRACTING SAID PLUNGER, A TUBE EXTENDING UPWARDLY FROM SAID BARREL, A THREEWAY TUBULAR MEMBER HAVING THREE LEGS WHICH INTERCOMMUNICATE, ONE LEG BEING JOINED TO THE TUBE OF SAID BARREL, THE SECOND LEG HAVING A PRESSURE GAGE ATTACHED THERETO, A SUBSTANTIALLY VERTICAL REACTION CHAMBER MOUNTED ON SAID BASE AND HAVING A TUBULAR PORTION WITH AN INTERMEDIATE BULBAR PORTION, THE LOWER END OF SAID CHAMBER BEING CONNECTED TO THE THIRD LEG OF SAID MEMBER, A VALVE ATTACHED TO THE UPPER END OF SAID CHAM-
Claim 2
Dependent Claim
116 words
APPARATUS FOR DETERMINING MINUTE QUANTITIES OF GASES IN MINUTE QUANTITIES OF BODY FLUIDS CONSISTING ESSENTIALLY OF A BASE, A BARREL MOUNTED ON SAID BASE, A PLUNGER IN SAID BARREL AND MEANS FOR ADVANCING AND RETRACTING SAID PLUNGER, A TUBE EXTENDING UPWARDLY FROM SAID BARREL, A THREEWAY TUBULAR MEMBER HAVING THREE LEGS WHICH INTERCOMMUNICATE, ONE LEG BEING JOINED TO THE TUBE OF SAID BARREL, THE SECOND LEG HAVING A PRESSURE GAGE ATTACHED THERETO, A SUBSTANTIALLY VERTICAL REACTION CHAMBER MOUNTED ON SAID BASE AND HAVING A TUBULAR PORTION WITH AN INTERMEDIATE BULBAR PORTION, THE LOWER END OF SAID CHAMBER BEING CONNECTED TO THE THIRD LEG OF SAID MEMBER, A VALVE ATTACHED TO THE UPPER END OF SAID CHAM-
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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) | 1957-05-31 | 1957-11-30 | 1958-06-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1961-05-31 | 1961-11-30 | 1962-06-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1965-05-31 | 1965-11-30 | 1966-06-01 | $7700.00 | Window Closed / Lapsed |