US2632781A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Dry cell
Assignee: Olin Industries Inc
•
Filing: 1948-09-17
•
Granted: 1953-03-24
•
Expires: 1968-09-17
Abstract
No abstract record available.
Inventors
- 👤 William B Woodring
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 01:24
CPC Classifications
H; H01; H01M; H01M6/00; H01M6/42; H01M6/46; H01M6/48
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
55 words
A BATTERY ELEMENT COMPRISING A CONTAINER OF DIELECTRIC CELLULOSE ACETATE-BUTYRATE COMPOSITION HAVING SAID WALLS AND A BOTTOM PROVIDED WITH A CENTRAL OPENING, AND A DUPLEX ELECTRODE COMPRISING A ZINC STRIP HAVING A LAYER OF A CONDUCTIVE VINYL CHLORIDE-ACETATE COPOLYMER COMPOSITION ADHERED TO ONE SURFACE THEREOF AND A COATING OF A CONDUCTIVE POLYVINYL ACETATE COMPOSITION AD-
Claim 2
Dependent Claim
55 words
A BATTERY ELEMENT COMPRISING A CONTAINER OF DIELECTRIC CELLULOSE ACETATE-BUTYRATE COMPOSITION HAVING SAID WALLS AND A BOTTOM PROVIDED WITH A CENTRAL OPENING, AND A DUPLEX ELECTRODE COMPRISING A ZINC STRIP HAVING A LAYER OF A CONDUCTIVE VINYL CHLORIDE-ACETATE COPOLYMER COMPOSITION ADHERED TO ONE SURFACE THEREOF AND A COATING OF A CONDUCTIVE POLYVINYL ACETATE COMPOSITION AD-
References Cited (Backward Citations)
US2154312A
Cited
US2375875A
Cited
GB554926A
Cited
US2444034A
Cited
US2418442A
Cited
US2487985A
Cited
US2475152A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1956-03-23 | 1956-09-22 | 1957-03-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1960-03-23 | 1960-09-22 | 1961-03-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1964-03-23 | 1964-09-22 | 1965-03-24 | $7700.00 | Window Closed / Lapsed |