US2915579A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Separator for electric battery
Assignee: Ions Exchange and Chemical Corp
•
Filing: 1955-12-27
•
Granted: 1959-12-01
•
Expires: 1975-12-27
Abstract
No abstract record available.
Inventors
- 👤 Mendelsohn Meyer
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 17:09
CPC Classifications
H; H01; H01M; H01M50/00; H01M50/40; H01M50/409; H01M50/449; H01M50/411; H01M50/414; H01M50/429; Y; Y02; Y02E; Y02E60/00; Y02E60/10
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
42 words
A SEPARATOR FOR AN ALKALINE BATTERY, COMPRISING A SEMI-PERMEABLE SHEET SWELLABLE IN AN ALKALINE MEDIUM AND A COATING OF ELASTOMERIC MATERIAL ON SAID SHEET, SAID MATERIAL BEING ELASTIC AT NORMAL TEMPERATURES, SAID COATING INCORPORATING A WATER-DISPERSIBLE, ALKALI-RESISTANT CATION-EXCHANGE RESIN UNIFORMLY DISTRIBUTED THERETHROUGH.
Claim 2
Dependent Claim
42 words
A SEPARATOR FOR AN ALKALINE BATTERY, COMPRISING A SEMI-PERMEABLE SHEET SWELLABLE IN AN ALKALINE MEDIUM AND A COATING OF ELASTOMERIC MATERIAL ON SAID SHEET, SAID MATERIAL BEING ELASTIC AT NORMAL TEMPERATURES, SAID COATING INCORPORATING A WATER-DISPERSIBLE, ALKALI-RESISTANT CATION-EXCHANGE RESIN UNIFORMLY DISTRIBUTED THERETHROUGH.
References Cited (Backward Citations)
US2181299A
Cited
US2655552A
Cited
US2653985A
Cited
US2610219A
Cited
US2816154A
Cited
US2653986A
Cited
US2696515A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1962-11-30 | 1963-06-01 | 1963-12-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-11-30 | 1967-06-01 | 1967-12-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-11-30 | 1971-06-01 | 1971-12-01 | $7700.00 | Window Closed / Lapsed |