Patent US3142988A successfully refreshed from Google Patents.
US3142988A
Expired / Lapsed
US
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Pressure sensing apparatus
Assignee: Halliburton Co
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Filing: 1960-10-10
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Granted: 1964-08-04
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Expires: 1980-10-10
Abstract
No abstract record available.
Inventors
- 👤 Robert G Love
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 19:18
CPC Classifications
G; G01; G01L; G01L7/00; G01L7/02
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
100 words
PRESSURE SENSING APPARATUS, COMPRISING IN COMBINATION: A BODY MEMBER HAVING A BORE, A TUBE IN THE BORE FORMING A FLUID PASSAGEWAY OF CONSTANT SIZE, SAID TUBE HAVING A LATERAL OPENING, A RESILIENT SLEEVE ENCIRCLING SAID TUBE, SAID SLEEVE HAVING A RESILIENT DIAPHRAGM FILLING SAID LATERAL OPENING AND HAVING AN INNER SURFACE FLUSH WITH THE INNER SURFACE OF THE TUBE, MEANS ON THE BODY MEMBER COOPERATING WITH SAID SLEEVE TO DEFINE AN ANNULAR CHAMBER THEREBETWEEN, THE CHAMBER HAVING SPACED PORTS, AND A FLUID DISCHARGE NOZZLE IN ONE OF SAID PORTS EXTENDING INTO SAID CHAMBER AND HAVING AN OUTLET ADJACENT SAID DIAPHRAGM.
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) | 1967-08-04 | 1968-02-03 | 1968-08-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-08-04 | 1972-02-03 | 1972-08-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-08-04 | 1976-02-03 | 1976-08-04 | $7700.00 | Window Closed / Lapsed |