US2479656A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Interceptor transformer
Assignee: Individual
•
Filing: 1946-09-21
•
Granted: 1949-08-23
•
Expires: 1966-09-21
Abstract
No abstract record available.
Inventors
- 👤 John R Wiegand
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 20:51
CPC Classifications
H; H01; H01F; H01F29/00; H01F29/14; H01F29/146; G; G05; G05B; G05B11/00; G05B11/01; G05B11/012; G05B11/016; H01F29/143
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US815863A
Cited
US1793213A
Cited
US1910381A
Cited
US1891044A
Cited
US1862212A
Cited
US1862204A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1952-08-22 | 1953-02-21 | 1953-08-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1956-08-22 | 1957-02-21 | 1957-08-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1960-08-22 | 1961-02-21 | 1961-08-23 | $7700.00 | Window Closed / Lapsed |