Patent EP0310270A2 successfully refreshed from Google Patents.
US2703014A
Expired / Lapsed
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Capillary manometer
Assignee: Bronwill Scientific Inc
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Filing: 1951-03-14
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Granted: 1955-03-01
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Expires: 1971-03-14
Abstract
No abstract record available.
Inventors
- 👤 Koelle Otto
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 19:55
CPC Classifications
G; G01; G01L; G01L7/00; G01L7/18
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
75 words
A WARBURG MANOMETER COMPRISING A SINGLE STRAIGHT ROD OF TRANSPARENT MATERIAL HAVING TWO PARALLEL CAPILLARY BORES EXTENDING LONGITUDINALLY THEREIN AND OUT THROUGH ONE AND THEREOF, SAID END BEING DIMENSIONED FORM RECEIVING A FLEXIBLE TUBE THEREOVER TO CLOSE SAID BORES WHILE ALLOWING FLUID COMMUNICATION THEREBETWEEN, ONE OF SAID BORES TERMINATING AS AN APERTURE NEAR THE OTHER END OF SAID ROD, AND MEANS NEAR SAID LAST-MENTIONED END FOR CONNECTING THE OTHER SAID BORE TO A WARBURG FLASK.
Claim 2
Dependent Claim
75 words
A WARBURG MANOMETER COMPRISING A SINGLE STRAIGHT ROD OF TRANSPARENT MATERIAL HAVING TWO PARALLEL CAPILLARY BORES EXTENDING LONGITUDINALLY THEREIN AND OUT THROUGH ONE AND THEREOF, SAID END BEING DIMENSIONED FORM RECEIVING A FLEXIBLE TUBE THEREOVER TO CLOSE SAID BORES WHILE ALLOWING FLUID COMMUNICATION THEREBETWEEN, ONE OF SAID BORES TERMINATING AS AN APERTURE NEAR THE OTHER END OF SAID ROD, AND MEANS NEAR SAID LAST-MENTIONED END FOR CONNECTING THE OTHER SAID BORE TO A WARBURG FLASK.
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) | 1958-02-28 | 1958-08-30 | 1959-03-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1962-02-28 | 1962-08-30 | 1963-03-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1966-02-28 | 1966-08-30 | 1967-03-01 | $7700.00 | Window Closed / Lapsed |