US2955245A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Battery chargers
Assignee: Individual
•
Filing: 1957-10-02
•
Granted: 1960-10-04
•
Expires: 1977-10-02
Abstract
No abstract record available.
Inventors
- 👤 Payne Ivan Salisbury
- 👤 Arnot Alfred Erwin Reginald
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 22:25
CPC Classifications
H; H02; H02J; H02J7/00; H02J7/90; H02J7/971; H02J7/975; H02J7/977; H02J7/02; H02J7/04
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2510141A
Cited
US2796577A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1963-10-04 | 1964-04-04 | 1964-10-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-10-04 | 1968-04-04 | 1968-10-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-10-04 | 1972-04-04 | 1972-10-04 | $7700.00 | Window Closed / Lapsed |