Patent US2169732A successfully refreshed from Google Patents.
Patent US3071745A successfully refreshed from Google Patents.
US3071745A
Expired / Lapsed
US
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Pressure sensitive diaphragms with stress null zone oriented bridge patterns
Assignee: Statham Instruments Inc
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Filing: 1961-08-25
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Granted: 1963-01-01
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Expires: 1981-08-25
Abstract
No abstract record available.
Inventors
- 👤 Cecil K Stedman
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 14:43
CPC Classifications
G; G01; G01L; G01L1/00; G01L1/20; G01L1/22; G01L1/2287; G01L1/2293; G01L9/00; G01L9/0041; G01L9/0051; G01L9/0052; G01L9/0055
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
85 words
A PRESSURE RESPONSIVE DEVICE COMPRISING AN EDGE RESTRAINED DIAPHRAGM HAVING AN INTEGRAL BRIDGE PATTERN WITH A PLURALITY OF ACTIVE SEGMENTS INTERCONNECTED AT JUNCTURE AREAS IN TURN HAVING RELATIVELY LOW RESISTANCE CONDUCTOR SEGMENTS EXTENDING BEYOND THE RESTRAINED EDGE OF THE DIAPHRAGM; SAID JUNCTURE AREAS LYING SUBSTANTIALLY IN THE RADIAL STRESS NULL ZONE OF THE DIAPHRAGM, WITH ONE ACTIVE SEGMENT CONNECTED TO EACH JUNCTURE AREA DISPOSED NEARCENTER FROM SAID RADIAL STRESS NULL ZONE AND THE OTHER ACTIVE SEGMENT CONNECTED THERETO DISPOSED NEAR-EDGE FROM SAID RADIAL NULL ZONE.
Claim 2
Dependent Claim
85 words
A PRESSURE RESPONSIVE DEVICE COMPRISING AN EDGE RESTRAINED DIAPHRAGM HAVING AN INTEGRAL BRIDGE PATTERN WITH A PLURALITY OF ACTIVE SEGMENTS INTERCONNECTED AT JUNCTURE AREAS IN TURN HAVING RELATIVELY LOW RESISTANCE CONDUCTOR SEGMENTS EXTENDING BEYOND THE RESTRAINED EDGE OF THE DIAPHRAGM; SAID JUNCTURE AREAS LYING SUBSTANTIALLY IN THE RADIAL STRESS NULL ZONE OF THE DIAPHRAGM, WITH ONE ACTIVE SEGMENT CONNECTED TO EACH JUNCTURE AREA DISPOSED NEARCENTER FROM SAID RADIAL STRESS NULL ZONE AND THE OTHER ACTIVE SEGMENT CONNECTED THERETO DISPOSED NEAR-EDGE FROM SAID RADIAL NULL ZONE.
References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1965-12-31 | 1966-07-02 | 1967-01-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-12-31 | 1970-07-02 | 1971-01-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-12-31 | 1974-07-02 | 1975-01-01 | $7700.00 | Window Closed / Lapsed |