US2539873A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of making battery connections
Assignee: Burgess Battery Co
•
Filing: 1947-01-30
•
Granted: 1951-01-30
•
Expires: 1967-01-30
Abstract
No abstract record available.
Inventors
- 👤 Ernest F Steinhoff
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 10:39
CPC Classifications
H; H01; H01M; H01M50/00; H01M50/50; H01M50/528; Y; Y02; Y02E; Y02E60/00; Y02E60/10; Y10; Y10T; Y10T29/00; Y10T29/49; Y10T29/49002; Y10T29/49108; Y10T29/4911; Y10T29/49115; Y10T29/49117; Y10T29/49124; Y10T29/49147; Y10T29/49149
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
DE313154C
Cited
US1639280A
Cited
US1670040A
Cited
GB255967A
Cited
US1758362A
Cited
US1723727A
Cited
US1984925A
Cited
US2361378A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1954-01-29 | 1954-07-31 | 1955-01-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1958-01-29 | 1958-07-31 | 1959-01-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1962-01-29 | 1962-07-31 | 1963-01-30 | $7700.00 | Window Closed / Lapsed |