US1293388A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Circuit-breaker.
Assignee: FRANK W FOSTER
•
Filing: 1917-09-27
•
Granted: 1919-02-04
•
Expires: 1937-09-27
Abstract
No abstract record available.
Inventors
- 👤 James E Evans
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 18:02
CPC Classifications
H; H01; H01H; H01H37/00; H01H37/02; H01H37/32; H01H37/36; Y; Y10; Y10S; Y10S200/00; Y10S200/28
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) | 1922-02-03 | 1922-08-05 | 1923-02-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1926-02-03 | 1926-08-05 | 1927-02-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1930-02-03 | 1930-08-05 | 1931-02-04 | $7700.00 | Window Closed / Lapsed |