Patent US3048647A successfully refreshed from Google Patents.
US3048647A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Separator media for aluminum cells
Assignee: Union Carbide Corp
•
Filing: 1958-02-28
•
Granted: 1962-08-07
•
Expires: 1978-02-28
Abstract
No abstract record available.
Inventors
- 👤 Margaret P Korver
- 👤 Nelson C Cahoon
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 05:35
CPC Classifications
H; H01; H01M; H01M6/00; H01M6/22; H01M50/00; H01M50/40; H01M50/409; H01M50/411; H01M50/414; H01M50/42; H01M50/423; H01M50/429; H01M6/04; H01M6/06; H01M50/46
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
81 words
IN A CELL HAVING AN ANODE CONSISTING OF ALUMINUM AND ALLOYS THEREOF, A DELOLARIZER AND AN ELECTROLYTE SELECTED FROM TH GROUP CONSISTING OF ALUMINUM CHLORIDE, AMMONIUM CHROMATE, ALUMIUNUM CHLORIDE HEXAHYDRATE, SODIUM CHROMATE AND POTASSIUM CHROMATE, AN IONICALLY PERMEABLE SEPARATOR MEDIUM BETWEEN SAID ANODE AND SAID DEPOLARIZER, SAID SEPARATOR MEDIUM BETWEEN SAID ANODE AND SAID BIBULOUS IN SAID SEPARATOR MEDIUM COMPRISING A COLLOID SAID ELECROLYTE, SAID COLLIOD BEING SELECTED FROM THE GROUP CONSISTING OF LOCUST BEAN GUM, GUM KARAYA AND POLYACRYLAMIDE RESINS.
Claim 2
Dependent Claim
81 words
IN A CELL HAVING AN ANODE CONSISTING OF ALUMINUM AND ALLOYS THEREOF, A DELOLARIZER AND AN ELECTROLYTE SELECTED FROM TH GROUP CONSISTING OF ALUMINUM CHLORIDE, AMMONIUM CHROMATE, ALUMIUNUM CHLORIDE HEXAHYDRATE, SODIUM CHROMATE AND POTASSIUM CHROMATE, AN IONICALLY PERMEABLE SEPARATOR MEDIUM BETWEEN SAID ANODE AND SAID DEPOLARIZER, SAID SEPARATOR MEDIUM BETWEEN SAID ANODE AND SAID BIBULOUS IN SAID SEPARATOR MEDIUM COMPRISING A COLLOID SAID ELECROLYTE, SAID COLLIOD BEING SELECTED FROM THE GROUP CONSISTING OF LOCUST BEAN GUM, GUM KARAYA AND POLYACRYLAMIDE RESINS.
References Cited (Backward Citations)
US1201481A
Cited
US1807875A
Cited
US2200301A
Cited
GB541696A
Cited
US2534336A
Cited
US2551799A
Cited
US2927951A
Cited
US2796456A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1965-08-06 | 1966-02-05 | 1966-08-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-08-06 | 1970-02-05 | 1970-08-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-08-06 | 1974-02-05 | 1974-08-07 | $7700.00 | Window Closed / Lapsed |