US1887811A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Battery
Assignee: Individual
•
Filing: 1931-10-27
•
Granted: 1932-11-15
•
Expires: 1951-10-27
Abstract
No abstract record available.
Inventors
- 👤 Ikin William George
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 19:17
CPC Classifications
H; H01; H01M; H01M6/00; H01M6/42; H01M6/44; H01M50/00; H01M50/20; H01M50/204; H01M50/207; H01M50/213; H01M50/289; H01M50/218; H01M50/22; H01M50/222; H01M50/224; H01M50/227
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) | 1935-11-15 | 1936-05-16 | 1936-11-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1939-11-15 | 1940-05-16 | 1940-11-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1943-11-15 | 1944-05-16 | 1944-11-15 | $7700.00 | Window Closed / Lapsed |