US2534336A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Primary galvanic cell
Assignee: Union Carbide Corp
•
Filing: 1944-12-14
•
Granted: 1950-12-19
•
Expires: 1964-12-14
Abstract
No abstract record available.
Inventors
- 👤 Nelson C Cahoon
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 06:39
CPC Classifications
H; H01; H01M; H01M6/00; H01M6/04; H01M6/06; H01M50/00; H01M50/40; H01M50/409; H01M50/411; H01M50/429; H01M50/449; H01M50/463
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
67 words
A PRIMARY GALVANIC CELL COMPRISING A SOLUBLE ELECTRODE; AN INSOLUBLE ELECTRODE; A DEPOLARIZER MIX; AND ELECTROLYTE; AND A DIAPHRAGM ADJACENT TO AND IN CONTACT WITH SAID SOLUBLE ELECTRODE AND SAID DEPOLARIZER MIX, SAID DIAPHRAGM BEING COMPOSED OF A BIBULOUS CHEMICALLY INERT, NONFIBROUS, SYNTHETIC ORGANIC FILM MATERIAL AT LEAST THE SURFACE PORTION OF SAID DIAPHRAGM IN CONTACT WITH SAID DEPOLARIZER MIX BEING SWELLABLE IN SAID ELECTROLYTE BUT INSOLUBILIZED.
Claim 2
Dependent Claim
67 words
A PRIMARY GALVANIC CELL COMPRISING A SOLUBLE ELECTRODE; AN INSOLUBLE ELECTRODE; A DEPOLARIZER MIX; AND ELECTROLYTE; AND A DIAPHRAGM ADJACENT TO AND IN CONTACT WITH SAID SOLUBLE ELECTRODE AND SAID DEPOLARIZER MIX, SAID DIAPHRAGM BEING COMPOSED OF A BIBULOUS CHEMICALLY INERT, NONFIBROUS, SYNTHETIC ORGANIC FILM MATERIAL AT LEAST THE SURFACE PORTION OF SAID DIAPHRAGM IN CONTACT WITH SAID DEPOLARIZER MIX BEING SWELLABLE IN SAID ELECTROLYTE BUT INSOLUBILIZED.
References Cited (Backward Citations)
USRE22065E
Cited
US778653A
Cited
US1574844A
Cited
US1640488A
Cited
GB394171A
Cited
US2034817A
Cited
US1918717A
Cited
US1981352A
Cited
GB479462A
Cited
US2297248A
Cited
US2231319A
Cited
US2275281A
Cited
US2270200A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1953-12-18 | 1954-06-19 | 1954-12-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1957-12-18 | 1958-06-19 | 1958-12-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1961-12-18 | 1962-06-19 | 1962-12-19 | $7700.00 | Window Closed / Lapsed |