US2434703A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Dry cell closure
Assignee: Olin Industries Inc
•
Filing: 1943-05-25
•
Granted: 1948-01-20
•
Expires: 1963-05-25
Abstract
No abstract record available.
Inventors
- 👤 Morris D Koppelman
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 22:21
CPC Classifications
H; H01; H01M; H01M50/00; H01M50/10; H01M50/172; H01M50/174; H01M50/182; Y; Y02; Y02E; Y02E60/00; Y02E60/10
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US902173A
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US1552414A
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US1461413A
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US2143245A
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GB398701A
Cited
US2158151A
Cited
US2149169A
Cited
US2198423A
Cited
US2322456A
Cited
US2346640A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1951-01-19 | 1951-07-21 | 1952-01-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1955-01-19 | 1955-07-21 | 1956-01-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1959-01-19 | 1959-07-21 | 1960-01-20 | $7700.00 | Window Closed / Lapsed |