US2563936A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of manufacturing battery grids
Assignee: Willard Storage Battery Co
•
Filing: 1948-02-06
•
Granted: 1951-08-14
•
Expires: 1968-02-06
Abstract
No abstract record available.
Inventors
- 👤 Herbert D Huntsberger
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 09:48
CPC Classifications
H; H01; H01M; H01M4/00; H01M4/02; H01M4/14; H01M4/16; H01M4/20; Y; Y02; Y02E; Y02E60/00; Y02E60/10
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US518966A
Cited
GB190101890A
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US919010A
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US1105243A
Cited
US1197737A
Cited
US1638943A
Cited
US1747661A
Cited
US2115127A
Cited
US2365705A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1954-08-13 | 1955-02-12 | 1955-08-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1958-08-13 | 1959-02-12 | 1959-08-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1962-08-13 | 1963-02-12 | 1963-08-14 | $7700.00 | Window Closed / Lapsed |