Patent US2482062A successfully refreshed from Google Patents.
US2482062A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Storage battery separator of polystyrene fiber
Assignee: Dow Chemical Co
•
Filing: 1945-01-19
•
Granted: 1949-09-13
•
Expires: 1965-01-19
Abstract
No abstract record available.
Inventors
- 👤 Alden W Hanson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 18:38
CPC Classifications
H; H01; H01M; H01M50/00; H01M50/40; H01M50/409; H01M50/44; H01M50/411; H01M50/414; H01M50/417; H01M50/489; H01M50/491; Y; Y02; Y02E; Y02E60/00; Y02E60/10; Y10; Y10S; Y10S162/00; Y10S162/03; Y10T; Y10T428/00; Y10T428/249921; Y10T428/249924; Y10T428/26; Y10T428/266; Y10T428/268; Y10T428/29; Y10T428/2913; Y10T428/298
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
US2015006A
Cited
US2117371A
Cited
US2133236A
Cited
US2131024A
Cited
US2297248A
Cited
US2335757A
Cited
US2277049A
Cited
US2271829A
Cited
US2354744A
Cited
US2357392A
Cited
US2306781A
Cited
US2430868A
Cited
US2405978A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1952-09-12 | 1953-03-14 | 1953-09-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1956-09-12 | 1957-03-14 | 1957-09-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1960-09-12 | 1961-03-14 | 1961-09-13 | $7700.00 | Window Closed / Lapsed |