US3341446A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Process for the production of a single-frame catalyzer electrode and product
Assignee: BBC Brown Boveri AG Germany
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Filing: 1962-11-01
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Granted: 1967-09-12
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Expires: 1982-11-01
Abstract
No abstract record available.
Inventors
- 👤 Vielstich Wolf
- 👤 Guth Egbert
- 👤 Plust Heinz Gunther
- 👤 Telschow Carl Georg
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 01:16
CPC Classifications
C; C25; C25B; C25B11/00; C25B11/04; B; B01; B01J; B01J37/00; B01J37/0009; B01J37/0018; H; H01; H01M; H01M4/00; H01M4/86; H01M4/98; Y; Y02; Y02E; Y02E60/00; Y02E60/30; Y02E60/50
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
96 words
PROCESS FOR THE PRODUCTION OF A SINGLE-FRAMCE CATALYZER ELECTRODE OF OPTIMUM POROSITY AND INNER SURFACE FOR USE IN ELECTROCHEMCIAL DEVICES WHICH COMPRISES MIXING A POWDER OF A CATALYTICALLY ACTIVE METAL SELELCTED FROM THE GROUP CONSISTING OF NI AND AG WITH A POWDER OF A CATALYTICALLY INACTIVE METAL SELECTED FROM THE GROUP CONSISTING OF AL AND ZN UNDER SUFFICIENT MECHANICAL PRESSURE TO EFECT PLASTIC DEFORMATION OF THE INACTIVE METAL GRAINS, PRESSING THE MIXTURE INTO A SHAPED PIECE, SINTERING THE SHAPED PIECE AND THEN TREATING THE SHAPED PIECE WITH A LYE TO DISSOLVE OUT THE CATALYTICALLY INACTIVE COMPONENTS.
Claim 2
Dependent Claim
96 words
PROCESS FOR THE PRODUCTION OF A SINGLE-FRAMCE CATALYZER ELECTRODE OF OPTIMUM POROSITY AND INNER SURFACE FOR USE IN ELECTROCHEMCIAL DEVICES WHICH COMPRISES MIXING A POWDER OF A CATALYTICALLY ACTIVE METAL SELELCTED FROM THE GROUP CONSISTING OF NI AND AG WITH A POWDER OF A CATALYTICALLY INACTIVE METAL SELECTED FROM THE GROUP CONSISTING OF AL AND ZN UNDER SUFFICIENT MECHANICAL PRESSURE TO EFECT PLASTIC DEFORMATION OF THE INACTIVE METAL GRAINS, PRESSING THE MIXTURE INTO A SHAPED PIECE, SINTERING THE SHAPED PIECE AND THEN TREATING THE SHAPED PIECE WITH A LYE TO DISSOLVE OUT THE CATALYTICALLY INACTIVE COMPONENTS.
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) | 1970-09-11 | 1971-03-13 | 1971-09-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-09-11 | 1975-03-13 | 1975-09-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-09-11 | 1979-03-13 | 1979-09-12 | $7700.00 | Window Closed / Lapsed |