US2565674A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Storage battery
Assignee: Willard Storage Battery Co
•
Filing: 1947-07-10
•
Granted: 1951-08-28
•
Expires: 1967-07-10
Abstract
No abstract record available.
Inventors
- 👤 Anthony C Zachlin
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 13:29
CPC Classifications
H; H01; H01M; H01M50/00; H01M50/60; H01M50/609; H01M50/627; Y; Y02; Y02E; Y02E60/00; Y02E60/10
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US930065A
Cited
GB191020891A
Cited
GB104320A
Cited
US1331795A
Cited
US1389174A
Cited
US1992875A
Cited
US2139477A
Cited
US2436465A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1954-08-27 | 1955-02-26 | 1955-08-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1958-08-27 | 1959-02-26 | 1959-08-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1962-08-27 | 1963-02-26 | 1963-08-28 | $7700.00 | Window Closed / Lapsed |