US2650276A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Circuit breaker
Assignee: Anchor Manufacturing Co
•
Filing: 1950-05-12
•
Granted: 1953-08-25
•
Expires: 1970-05-12
Abstract
No abstract record available.
Inventors
- 👤 Harry P Sparkes
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 14:58
CPC Classifications
H; H01; H01H; H01H73/00; H01H73/36; H01H73/38; Y; Y10; Y10T; Y10T74/00; Y10T74/11
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
DE315121C
Cited
US997759A
Cited
US1950225A
Cited
US1974488A
Cited
US2027538A
Cited
US2253400A
Cited
US2091108A
Cited
US2171267A
Cited
US2502537A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1956-08-24 | 1957-02-23 | 1957-08-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1960-08-24 | 1961-02-23 | 1961-08-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1964-08-24 | 1965-02-23 | 1965-08-25 | $7700.00 | Window Closed / Lapsed |