US2467377A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Electrical induction apparatus
Assignee: General Electric Co
•
Filing: 1944-11-15
•
Granted: 1949-04-19
•
Expires: 1964-11-15
Abstract
No abstract record available.
Inventors
- 👤 Bertrand V Giegerich
- 👤 Carleton B Ryder
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 04:16
CPC Classifications
H; H01; H01F; H01F27/00; H01F27/24; H01F27/26; H01F27/266
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
GB339832A
Cited
US1905790A
Cited
US2091549A
Cited
US2070315A
Cited
US2340727A
Cited
US2354078A
Cited
US2403072A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1952-04-18 | 1952-10-18 | 1953-04-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1956-04-18 | 1956-10-18 | 1957-04-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1960-04-18 | 1960-10-18 | 1961-04-19 | $7700.00 | Window Closed / Lapsed |