US2447197A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Battery core machine and method
Assignee: MAY MACHINE Co
•
Filing: 1945-06-18
•
Granted: 1948-08-17
•
Expires: 1965-06-18
Abstract
No abstract record available.
Inventors
- 👤 May Benjamin
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 17:48
CPC Classifications
H; H01; H01M; H01M4/00; H01M4/02; H01M4/06; H01M4/08; H01M4/10; Y; Y10; Y10T; Y10T29/00; Y10T29/49; Y10T29/49826; Y10T29/49908; Y10T29/49925; Y10T29/51; Y10T29/5136; Y10T29/5137; Y10T29/5138; Y10T29/53; Y10T29/5313; Y10T29/53135; Y10T29/53139; Y10T29/53187; Y10T29/53261; Y10T29/53657
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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US1205782A
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1951-08-17 | 1952-02-16 | 1952-08-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1955-08-17 | 1956-02-16 | 1956-08-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1959-08-17 | 1960-02-16 | 1960-08-17 | $7700.00 | Window Closed / Lapsed |