US2582072A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Battery case
Assignee: Individual
•
Filing: 1948-05-01
•
Granted: 1952-01-08
•
Expires: 1968-05-01
Abstract
No abstract record available.
Inventors
- 👤 Frank W Schwinn
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 14:34
CPC Classifications
H; H01; H01M; H01M50/00; H01M50/20; H01M50/218; H01M50/22; H01M50/222; H01M50/224; Y; Y02; Y02E; Y02E60/00; Y02E60/10
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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US2252088A
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US2323312A
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US2527576A
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US2526101A
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1955-01-07 | 1955-07-09 | 1956-01-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1959-01-07 | 1959-07-09 | 1960-01-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1963-01-07 | 1963-07-09 | 1964-01-08 | $7700.00 | Window Closed / Lapsed |