US2004552A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Electric storage battery
Assignee: DRUMM BATTERY Co Ltd
•
Filing: 1933-05-17
•
Granted: 1935-06-11
•
Expires: 1953-05-17
Abstract
No abstract record available.
Inventors
- 👤 Drumm James Joseph
- 👤 Burnell Albert George
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 20:32
CPC Classifications
H; H01; H01M; H01M4/00; H01M4/02; H01M4/04; H01M4/0438; H01M4/045; H01M4/0452; G; G03; G03B; G03B33/00; G03B33/08; H01M10/00; H01M10/24; H01M10/26; H01M4/24; H01M4/62; H01M4/624; H01M4/626; H01M4/64; H01M4/66; H01M4/661; H01M4/669; H01M4/70; H01M4/72; H01M4/74; H01M4/742; H01M4/745; H01M4/747; H01M50/00; H01M50/10; H01M50/116; H01M50/117; H01M50/119; H01M50/124; H01M2004/026; H01M2004/027; H01M2004/028; H01M4/36; H01M4/48; H01M4/52; H01M4/54; H01M4/625; H01M4/76; H01M4/765; Y; Y02; Y02E; Y02E60/00; Y02E60/10
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) | 1938-06-10 | 1938-12-10 | 1939-06-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1942-06-10 | 1942-12-10 | 1943-06-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1946-06-10 | 1946-12-10 | 1947-06-11 | $7700.00 | Window Closed / Lapsed |