US1676155A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Circuit breaker and closer
Assignee: Individual
•
Filing: 1927-03-16
•
Granted: 1928-07-03
•
Expires: 1947-03-16
Abstract
No abstract record available.
Inventors
- 👤 Ferdinand A Pfeifer
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 16:13
CPC Classifications
H; H01; H01H; H01H37/00; H01H37/02; H01H37/60; Y; Y10; Y10T; Y10T74/00; Y10T74/20; Y10T74/20006; Y10T74/21; Y10T74/2142; Y10T74/2144
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1931-07-03 | 1932-01-02 | 1932-07-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1935-07-03 | 1936-01-02 | 1936-07-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1939-07-03 | 1940-01-02 | 1940-07-03 | $7700.00 | Window Closed / Lapsed |