US3397331A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Electrode structure for a magnetohydrodynamic device
Assignee: Avco Corp
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Filing: 1965-07-20
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Granted: 1968-08-13
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Expires: 1985-07-20
Abstract
No abstract record available.
Inventors
- 👤 Burkhard Kurt
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 21:15
CPC Classifications
H; H02; H02K; H02K44/00; H02K44/08; H02K44/10
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
76 words
AN ELECTRODE FOR A MAGNETOHYDRODYNAMIC DEVICE OF THE TYPE IN WHICH THE ELECTRODE IS EXPOSED TO HIGH TEMPERATURE CORROSIVE FLUIDS COMPRISING: (A) A METALLIC BASE MEMBER ONE END OF WHICH IS ADAPTED TO BE DISPOSED ADJACENT SAID FLUID; (B) A METAL THE OXIDE FO WHICH IS ELECTRICALLY CONDUCTIVE EXPOSED TO SAID FLUID AND COVERING A PORTION OF SAID END; AND (C) A REFRACTORY MATERIAL EXPOSED TO SAID FLUID AND COVERING SUBSTANTIALLY THE REMAINDER OF SAID END.
Claim 2
Dependent Claim
76 words
AN ELECTRODE FOR A MAGNETOHYDRODYNAMIC DEVICE OF THE TYPE IN WHICH THE ELECTRODE IS EXPOSED TO HIGH TEMPERATURE CORROSIVE FLUIDS COMPRISING: (A) A METALLIC BASE MEMBER ONE END OF WHICH IS ADAPTED TO BE DISPOSED ADJACENT SAID FLUID; (B) A METAL THE OXIDE FO WHICH IS ELECTRICALLY CONDUCTIVE EXPOSED TO SAID FLUID AND COVERING A PORTION OF SAID END; AND (C) A REFRACTORY MATERIAL EXPOSED TO SAID FLUID AND COVERING SUBSTANTIALLY THE REMAINDER OF SAID END.
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) | 1971-08-13 | 1972-02-12 | 1972-08-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-08-13 | 1976-02-12 | 1976-08-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-08-13 | 1980-02-12 | 1980-08-13 | $7700.00 | Window Closed / Lapsed |