US2431547A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Magneto
Assignee: WICO ELECTRIC Co
•
Filing: 1946-02-21
•
Granted: 1947-11-25
•
Expires: 1966-02-21
Abstract
No abstract record available.
Inventors
- 👤 Stanley R Ellingham
- 👤 Allen L Brownlee
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 19:24
CPC Classifications
F; F02; F02P; F02P1/00; F02P1/005
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1989629A
Cited
US1817410A
Cited
US1873114A
Cited
US1954087A
Cited
US2007373A
Cited
GB434269A
Cited
US2232451A
Cited
US2286232A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1950-11-24 | 1951-05-26 | 1951-11-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1954-11-24 | 1955-05-26 | 1955-11-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1958-11-24 | 1959-05-26 | 1959-11-25 | $7700.00 | Window Closed / Lapsed |