US3245839A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Electro-chemical generator
Assignee: FMC Corp
•
Filing: 1963-02-21
•
Granted: 1966-04-12
•
Expires: 1983-02-21
Abstract
No abstract record available.
Inventors
- 👤 Charles M Rosser
- 👤 Richard A Glinski
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 08:03
CPC Classifications
H; H01; H01M; H01M50/00; H01M50/40; H01M50/409; H01M50/411; H01M50/429; H01M50/414; H01M50/423; H01M50/449; H01M50/451; Y; Y02; Y02E; Y02E60/00; Y02E60/10
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
30 words
AN ELECTRO-CHEMICAL GENERATOR COMPRISING A POSITIVE ELECTRODE, A NEGATIVE ELECTRODE, ELECTROLYTE, AND A SEMIPERMEABLE CELLULOSIC SEPARATOR MEMBRANE IMPREGNATED WITH COLLODIAL METAL SELECTED FROM THE GROUP CONSISTING OF SILVER AND GOLD.
Claim 2
Dependent Claim
30 words
AN ELECTRO-CHEMICAL GENERATOR COMPRISING A POSITIVE ELECTRODE, A NEGATIVE ELECTRODE, ELECTROLYTE, AND A SEMIPERMEABLE CELLULOSIC SEPARATOR MEMBRANE IMPREGNATED WITH COLLODIAL METAL SELECTED FROM THE GROUP CONSISTING OF SILVER AND GOLD.
References Cited (Backward Citations)
US2574533A
Cited
US3013099A
Cited
US2956100A
Cited
US2876186A
Cited
US3075907A
Cited
US3022367A
Cited
US3091554A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1969-04-11 | 1969-10-11 | 1970-04-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-04-11 | 1973-10-11 | 1974-04-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-04-11 | 1977-10-11 | 1978-04-12 | $7700.00 | Window Closed / Lapsed |