Patent US4486690A successfully refreshed from Google Patents.
Patent US3407094A successfully refreshed from Google Patents.
US3407094A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of in situ preparation of hydrogen and simultaneous hydrogen control in electrochemical cells
Assignee: Prototech Inc
•
Filing: 1963-09-12
•
Granted: 1968-10-22
•
Expires: 1983-09-12
Abstract
No abstract record available.
Inventors
- 👤 Juda Walter
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 10:13
CPC Classifications
H; H01; H01M; H01M8/00; C; C01; C01B; C01B3/00; C01B3/50; C01B3/501; C01B2203/00; C01B2203/04; C01B2203/0405; C01B2203/041
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
132 words
A METHOD OF PROVIDING IN SITU PRODUCTION OF HYDROGEN FROM CARBONACEOUS FUELS AND SIMULATNEOUSLY CONTROLLING THE UTILIZATION OF THE HYDROGEN IN AN ELECTROCHEMICAL CELL, THAT COMPRISES, PASSING A CARBONACEOUS FUELCONTAINING FEED INTO AN ANODE SYSTEM IN THERMAL CONTACT WITH SAID CELL, PRODUCING IN SITU IMPURE HYDROGEN FROM SAID FEED AT A PARTIAL PRESSURE OF NOT MORE THAN ABOUT ATMPSPHERIC DURING THE DRAWING OF CRRENT FROM THE CELL, INTERPOSING AN ANODIC LAYER SELECTIVELY PERMEABLE TO HYDROGEN BUT IMPERMEABLE TO OTHER GASES IN THE PATH OF THE HYDROGEN AND IN CONTACT WITH THE ELECTROLYTIC MEDIUM, AND ADJUSTING AND MAINTAINING THE PARTIAL PRESSURE OF THE HYDROGEN PRODUCED IN SITU TO A VALUE LESS THAN ABOUT ATMOSPHERIC AND LESS THAN THE PRESSURE EXISTING IN THE ELECTROLYTIC MEDIUM OF THE CELL BY DRAWING CURRENT FROM THE CELL.
Claim 2
Independent Claim
132 words
A METHOD OF PROVIDING IN SITU PRODUCTION OF HYDROGEN FROM CARBONACEOUS FUELS AND SIMULATNEOUSLY CONTROLLING THE UTILIZATION OF THE HYDROGEN IN AN ELECTROCHEMICAL CELL, THAT COMPRISES, PASSING A CARBONACEOUS FUELCONTAINING FEED INTO AN ANODE SYSTEM IN THERMAL CONTACT WITH SAID CELL, PRODUCING IN SITU IMPURE HYDROGEN FROM SAID FEED AT A PARTIAL PRESSURE OF NOT MORE THAN ABOUT ATMPSPHERIC DURING THE DRAWING OF CRRENT FROM THE CELL, INTERPOSING AN ANODIC LAYER SELECTIVELY PERMEABLE TO HYDROGEN BUT IMPERMEABLE TO OTHER GASES IN THE PATH OF THE HYDROGEN AND IN CONTACT WITH THE ELECTROLYTIC MEDIUM, AND ADJUSTING AND MAINTAINING THE PARTIAL PRESSURE OF THE HYDROGEN PRODUCED IN SITU TO A VALUE LESS THAN ABOUT ATMOSPHERIC AND LESS THAN THE PRESSURE EXISTING IN THE ELECTROLYTIC MEDIUM OF THE CELL BY DRAWING CURRENT FROM THE CELL.
References Cited (Backward Citations)
US3002039A
Cited
US3116170A
Cited
US3133837A
Cited
US3235406A
Cited
US3092517A
Cited
US3148089A
Cited
US3180762A
Cited
US3177097A
Cited
US3259523A
Cited
US3202546A
Cited
US3180763A
Cited
US3206333A
Cited
US3216861A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1971-10-22 | 1972-04-22 | 1972-10-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-10-22 | 1976-04-22 | 1976-10-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-10-22 | 1980-04-22 | 1980-10-22 | $7700.00 | Window Closed / Lapsed |