US1227149A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of charging secondary batteries.
Assignee: HENDEE Manufacturing Co
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Filing: 1913-12-03
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Granted: 1917-05-22
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Expires: 1933-12-03
Abstract
No abstract record available.
Inventors
- 👤 Edward B Jacobson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 19:14
CPC Classifications
H; H02; H02J; H02J7/00; H02J7/90; H02J7/94
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1920-05-21 | 1920-11-20 | 1921-05-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1924-05-21 | 1924-11-20 | 1925-05-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1928-05-21 | 1928-11-20 | 1929-05-22 | $7700.00 | Window Closed / Lapsed |