US2899481A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Device for
Assignee: —
•
Filing: —
•
Granted: 1959-08-11
•
Expires: 1976-08-11
Abstract
No abstract record available.
Inventors
No inventors recorded.
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 08:41
CPC Classifications
H; H01; H01M; H01M50/00; H01M50/60; H01M50/609; H01M50/627; Y; Y02; Y02E; Y02E60/00; Y02E60/10; Y10; Y10T; Y10T137/00; Y10T137/2713; Y10T137/272; Y10T137/2842; Y10T137/2877; Y10T137/2897; Y10T137/2917
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1381298A
Cited
DE384234C
Cited
GB189826703A
Cited
US668838A
Cited
US842389A
Cited
US1301780A
Cited
US1781005A
Cited
US1926343A
Cited
US2135158A
Cited
US2339642A
Cited
FR1008760A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1962-08-10 | 1963-02-09 | 1963-08-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-08-10 | 1967-02-09 | 1967-08-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-08-10 | 1971-02-09 | 1971-08-11 | $7700.00 | Window Closed / Lapsed |