US1562971A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Battery-cell filler
Assignee: Individual
•
Filing: 1922-07-08
•
Granted: 1925-11-24
•
Expires: 1942-07-08
Abstract
No abstract record available.
Inventors
- 👤 Kershaw William Ernest
- 👤 Hodge Carroll
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 00:32
CPC Classifications
H; H01; H01M; H01M50/00; H01M50/60; H01M50/609; Y; Y02; Y02E; Y02E60/00; Y02E60/10; Y10; Y10T; Y10T137/00; Y10T137/8158; Y10T137/8342
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) | 1928-11-23 | 1929-05-25 | 1929-11-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1932-11-23 | 1933-05-25 | 1933-11-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1936-11-23 | 1937-05-25 | 1937-11-24 | $7700.00 | Window Closed / Lapsed |