US3123789A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Figure
Assignee: —
•
Filing: —
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Granted: 1964-03-03
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Expires: 1981-03-03
Abstract
No abstract record available.
Inventors
No inventors recorded.
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 20:03
CPC Classifications
G; G01; G01N; G01N17/00
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
144 words
A CORROSON-TEST DEVICE COMPRISING A HOLLOW HOUSING HAVING AN OPENING IN ONE SIDE THEREOF, FLUID INLET AND OUTLET MEANS COMMUNICATING WITH THE INERIOR OF SAID HOUSING, AND A TEST PANEL ATTACHED ACROSS SAID OPENING TO DEFINE A CHAMBER WITHIN SAID HOUSING, SAID TEST PANEL COMPRISING A SHEET-LIKE, ELONGATED ELECTRICALLY CONDUCTIVE, CORRODIBLE TEST ELEMENT, A SHEET-LIKE, ELONGATED, COMPENSATING ELEMENT HAVING A TEMPERATURE-RESISTANCE CHARACTERISTIC SUBSTANTIALLY THE SAME AS THAT OF SAID TEST ELEMENT, A THIN LAYER OF ELECTRICALLY INSULATING MATERIAL DISPOSED BETWEEN THE FLAT SURFACES OF SAID TEST ELEMENT AND COMPENSATING ELEMENT TO SEPARATE THE SAME, AND A SECOND LAYER OF ELECTRICALLY INSULATING, CORROSION-RESISTANT MATERIAL DISPOSED ON THE SURFACE OF SAID COMPENSATING ELEMENT OPPOSITE FROM SAID TEST ELEMENT, SAID TEST ELEMENT, COMPENSATING ELEMENT, AND LAYERS BEING ARRANGED IN SANDWICH-LIKE CONFIGURATION TO FORM SAID PANEL, AND BEING ATTACHED TO SAID HOUSING WITH SAID TEST ELEMENT EXTERNAL THERETO.
Claim 2
Dependent Claim
144 words
A CORROSON-TEST DEVICE COMPRISING A HOLLOW HOUSING HAVING AN OPENING IN ONE SIDE THEREOF, FLUID INLET AND OUTLET MEANS COMMUNICATING WITH THE INERIOR OF SAID HOUSING, AND A TEST PANEL ATTACHED ACROSS SAID OPENING TO DEFINE A CHAMBER WITHIN SAID HOUSING, SAID TEST PANEL COMPRISING A SHEET-LIKE, ELONGATED ELECTRICALLY CONDUCTIVE, CORRODIBLE TEST ELEMENT, A SHEET-LIKE, ELONGATED, COMPENSATING ELEMENT HAVING A TEMPERATURE-RESISTANCE CHARACTERISTIC SUBSTANTIALLY THE SAME AS THAT OF SAID TEST ELEMENT, A THIN LAYER OF ELECTRICALLY INSULATING MATERIAL DISPOSED BETWEEN THE FLAT SURFACES OF SAID TEST ELEMENT AND COMPENSATING ELEMENT TO SEPARATE THE SAME, AND A SECOND LAYER OF ELECTRICALLY INSULATING, CORROSION-RESISTANT MATERIAL DISPOSED ON THE SURFACE OF SAID COMPENSATING ELEMENT OPPOSITE FROM SAID TEST ELEMENT, SAID TEST ELEMENT, COMPENSATING ELEMENT, AND LAYERS BEING ARRANGED IN SANDWICH-LIKE CONFIGURATION TO FORM SAID PANEL, AND BEING ATTACHED TO SAID HOUSING WITH SAID TEST ELEMENT EXTERNAL THERETO.
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) | 1967-03-03 | 1967-09-02 | 1968-03-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-03-03 | 1971-09-02 | 1972-03-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-03-03 | 1975-09-02 | 1976-03-03 | $7700.00 | Window Closed / Lapsed |