Patent US3134262A successfully refreshed from Google Patents.
US3134262A
Expired / Lapsed
US
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Precision manometer
Assignee: Individual
•
Filing: 1963-09-16
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Granted: 1964-05-26
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Expires: 1983-09-16
Abstract
No abstract record available.
Inventors
- 👤 Joseph S Dworzan
- 👤 Robert C Cruzan
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 16:45
CPC Classifications
G; G01; G01L; G01L9/00; G01L9/0091; G01L9/0095; G01L9/12
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
82 words
A PRECISION MANOMETER COMPRISING, IN COMBINATION, A PAIR OF TANKS IN FLUID COMMUNICATION WITH EACH OTHER, A QUANTITY OF LIQUID IN SAID TANKS AT LEAST THE SURFACE PORTION OF WHICH IS ELECTRICALLY CONDUCTIVE, AN INLET PORT IN EACH OF SAID TANKS LOCATED ABOVE THE SURFACE OF THE LIQUID THEREIN, RELATIVELY LARGE CONDUCTIVE PLATES SUPPORTED IN RESPECTIVE ONES OF SAID TANKS IN PARALLEL RELATION TO THE SURFACES OF THE LIQUID THEREIN AND AT PRESELECTED DISTANCES THEREFROM TO FORM RESPECTIVE AIR GAPS, SAID CONDUCTIVE
Claim 2
Dependent Claim
82 words
A PRECISION MANOMETER COMPRISING, IN COMBINATION, A PAIR OF TANKS IN FLUID COMMUNICATION WITH EACH OTHER, A QUANTITY OF LIQUID IN SAID TANKS AT LEAST THE SURFACE PORTION OF WHICH IS ELECTRICALLY CONDUCTIVE, AN INLET PORT IN EACH OF SAID TANKS LOCATED ABOVE THE SURFACE OF THE LIQUID THEREIN, RELATIVELY LARGE CONDUCTIVE PLATES SUPPORTED IN RESPECTIVE ONES OF SAID TANKS IN PARALLEL RELATION TO THE SURFACES OF THE LIQUID THEREIN AND AT PRESELECTED DISTANCES THEREFROM TO FORM RESPECTIVE AIR GAPS, SAID CONDUCTIVE
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) | 1967-05-26 | 1967-11-25 | 1968-05-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-05-26 | 1971-11-25 | 1972-05-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-05-26 | 1975-11-25 | 1976-05-26 | $7700.00 | Window Closed / Lapsed |