US2445556A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Dry cell battery with terminal cap
Assignee: MAICO Co Inc
•
Filing: 1945-08-02
•
Granted: 1948-07-20
•
Expires: 1965-08-02
Abstract
No abstract record available.
Inventors
- 👤 Clifford M Bircher
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 23:04
CPC Classifications
H; H01; H01M; H01M50/00; H01M50/10; H01M50/147; H01M50/166; H01M50/167; Y; Y02; Y02E; Y02E60/00; Y02E60/10
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
DE475944C
Cited
US705919A
Cited
US2036519A
Cited
GB387965A
Cited
US2225460A
Cited
US2205878A
Cited
US2229377A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1951-07-20 | 1952-01-19 | 1952-07-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1955-07-20 | 1956-01-19 | 1956-07-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1959-07-20 | 1960-01-19 | 1960-07-20 | $7700.00 | Window Closed / Lapsed |