US2605299A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Primary galvanic cell
Assignee: Union Carbide Corp
•
Filing: 1950-02-23
•
Granted: 1952-07-29
•
Expires: 1970-02-23
Abstract
No abstract record available.
Inventors
- 👤 Teas Jean Paul
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 02:46
CPC Classifications
H; H01; H01M; H01M4/00; H01M4/86; H01M4/02; H01M4/06; H01M4/64; H01M6/00; H01M6/04; H01M6/06; H01M6/08; Y; Y02; Y02E; Y02E60/00; Y02E60/30; Y02E60/50
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1184135A
Cited
US1266166A
Cited
US1267349A
Cited
US1836903A
Cited
US2180839A
Cited
US2392795A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1955-07-29 | 1956-01-28 | 1956-07-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1959-07-29 | 1960-01-28 | 1960-07-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1963-07-29 | 1964-01-28 | 1964-07-29 | $7700.00 | Window Closed / Lapsed |