US3828333A
Expired / Lapsed
US
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Pressure sensing and indicating system
Assignee: INT TECHNICAL IND
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Filing: 1971-12-16
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Granted: 1974-08-06
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Expires: 1991-12-16
Abstract
Abstract A PRESSURE SENSING AND INDICATING SYSTEM FOR USE IN CONJUNCTION WITH A VESSEL PRESSURIZED TO AN INITIAL PRESSURE WITH A FLUID MEDIUM AND OPERATIVE TO SENSE AND SIGNAL THE PRESSURE WITHIN THE VESSEL INCLUDES A PAIR OF TRANSDUCERS FOR COMPENSATING FOR TEMPERATURE VARIATIONS.
Inventors
- 👤 P Bryant
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 14:39
CPC Classifications
B; B60; B60R; B60R21/00; B60R21/02; B60R21/16; B60R21/26; B60R21/268; G; G01; G01L; G01L9/00; G01L9/10; G01L9/105; G01L9/16
Claims Analysis
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References Cited (Backward Citations)
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1977-08-05 | 1978-02-04 | 1978-08-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-08-05 | 1982-02-04 | 1982-08-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-08-05 | 1986-02-04 | 1986-08-06 | $7700.00 | Window Closed / Lapsed |