US1842292A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Automatic battery filler
Assignee: Sardik Inc
•
Filing: 1927-06-27
•
Granted: 1932-01-19
•
Expires: 1947-06-27
Abstract
No abstract record available.
Inventors
- 👤 Jack D Sartakoff
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 23:05
CPC Classifications
H; H01; H01M; H01M50/00; H01M50/60; H01M50/609; Y; Y02; Y02E; Y02E60/00; Y02E60/10; Y10; Y10T; Y10T137/00; Y10T137/0753; Y10T137/0898; Y10T137/2713; Y10T137/2761; Y10T137/2768; Y10T137/4673; Y10T137/4757; Y10T137/7287; Y10T137/7313; Y10T137/7323; Y10T137/7358; Y10T137/7423; Y10T137/7426; Y10T137/7436
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
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) | 1935-01-18 | 1935-07-20 | 1936-01-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1939-01-18 | 1939-07-20 | 1940-01-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1943-01-18 | 1943-07-20 | 1944-01-19 | $7700.00 | Window Closed / Lapsed |