US3286514A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Total pressure transducer
Assignee: Individual
•
Filing: 1964-03-20
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Granted: 1966-11-22
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Expires: 1984-03-20
Abstract
No abstract record available.
Inventors
- 👤 Curtis A Anderson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 03:18
CPC Classifications
G; G01; G01B; G01B7/00; G01B7/16; G01B7/18; G01L; G01L9/00; G01L9/0082
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
120 words
A PRESSURE MEASURING DEVICE FOR EMBODIMENT IN A MATERIAL MASS HAVING A MODULUS OF ELASTICITY AND MODULUS OF RIGIDITY CORRESPONDING TO THE MATERIAL MASS COMPRISING: (A) A FLEXIBLE, SEALED ENVELOPE HAVING A MAXIMUM THICKNESS CENTRALLY THEREOF AND TAPERING TO MAXIMUM THICKNESS AT THE EDGE THEREOF; (B) A LIQUID CONTAINED WITHIN SAID ENVELOPE HAVING A LOWER THERMAL COEFFICIENT OF EXPANSION, LOW FREEZING POINT AND HIGH INCOMPRESSIBILITY; (C) A PRESSURE RESPONSIVE TRANSDUCER IMMERSED IN SAID LIQUID; AND (D) ELECTRICAL CONDUCTOR LEADS CONNECTED TO SAID TRANSDUCER AND PROJECTING EXTERNALLY OF SAID ENVELOPE FOR CONNECTION TO AN INDICATING MEANS WHEREBY SAID PRESSURE MEASURING DEVICE EMBEDDED IN THE MATERIAL MASS RECORDS INTERNAL PRESSURES OF SAID MATERIAL MASS WITHOUT AFFECTING THE HOMOGENEITY OF THE MATERIAL MASS.
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) | 1969-11-21 | 1970-05-23 | 1970-11-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-11-21 | 1974-05-23 | 1974-11-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-11-21 | 1978-05-23 | 1978-11-22 | $7700.00 | Window Closed / Lapsed |