Patent US2637759A successfully refreshed from Google Patents.
US2637759A
Expired / Lapsed
US
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Storage battery cell cover and construction
Assignee: Individual
•
Filing: 1949-02-05
•
Granted: 1953-05-05
•
Expires: 1969-02-05
Abstract
No abstract record available.
Inventors
- 👤 John K Shannon
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 17:49
CPC Classifications
H; H01; H01M; H01M50/00; H01M50/10; H01M50/147; H01M50/50; H01M50/528; Y; Y02; Y02E; Y02E60/00; Y02E60/10
Claims Analysis
Total Claims: 0
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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) | 1956-05-04 | 1956-11-03 | 1957-05-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1960-05-04 | 1960-11-03 | 1961-05-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1964-05-04 | 1964-11-03 | 1965-05-05 | $7700.00 | Window Closed / Lapsed |