US3107534A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Trap for mercury retention
Assignee: WR Grace and Co
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Filing: 1961-07-13
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Granted: 1963-10-22
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Expires: 1981-07-13
Abstract
No abstract record available.
Inventors
- 👤 Roger K Taylor
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 07:00
CPC Classifications
G; G01; G01L; G01L7/00; G01L7/18; Y; Y10; Y10T; Y10T137/00; Y10T137/2931; Y10T137/3003; Y10T137/3084
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
89 words
A TRAP AND LIQUID MANOMETER COMBINATION COMPRISING A LIQUID MAMOMETER HAVING ONE OPEN ARM, A SPHEROIDAL BODY, A LIQUID RETURN LEADING AXIALLY FROM THE BOTTOM OF SAID SPHEROID TO THE OPEN END OF SAID MANOMETER, MEANS RESTRICTING THE FLOW OF LIQUID THROUGH SAID RETURN LINE, A BYPASS LEADING FROM SAID LIQUID RETURN LINE BELOW SAID RESTRICTION AND ENTERING SAID SPHEROID TANGENTIALLY AT ITS PERIPHERY, AND A GAS EXIT TUBE LEADING AXIALLY UPWARDLY FROM SAID SPHERIOD, SAID EXIT TUBE HAVING A INTAKE IN SAID BODY DIRECTED AWAY FROM ITS AXIS.
Claim 2
Dependent Claim
89 words
A TRAP AND LIQUID MANOMETER COMBINATION COMPRISING A LIQUID MAMOMETER HAVING ONE OPEN ARM, A SPHEROIDAL BODY, A LIQUID RETURN LEADING AXIALLY FROM THE BOTTOM OF SAID SPHEROID TO THE OPEN END OF SAID MANOMETER, MEANS RESTRICTING THE FLOW OF LIQUID THROUGH SAID RETURN LINE, A BYPASS LEADING FROM SAID LIQUID RETURN LINE BELOW SAID RESTRICTION AND ENTERING SAID SPHEROID TANGENTIALLY AT ITS PERIPHERY, AND A GAS EXIT TUBE LEADING AXIALLY UPWARDLY FROM SAID SPHERIOD, SAID EXIT TUBE HAVING A INTAKE IN SAID BODY DIRECTED AWAY FROM ITS AXIS.
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) | 1966-10-21 | 1967-04-22 | 1967-10-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-10-21 | 1971-04-22 | 1971-10-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-10-21 | 1975-04-22 | 1975-10-22 | $7700.00 | Window Closed / Lapsed |